What elements does the human body need?
Sun Zongyan's arrangement in Liaocheng was completed on September +0 1 day, 2020. The last revision was in June, 20021.3.6438.
There are 35 kinds of essential elements for human body, arranged according to the periodic table of elements. The first is "hydrogen" and the last is "iodine". If 15 kinds of unnecessary but small amount of harmless "lanthanides" are added, the human body needs 50 kinds of elements.
(Bold red with two @ @ fonts is an important element; Blue italics with @ are required elements; There is no need to be bold in the style of black songs; Bold bold with exclamation point! Harmfully, the more exclamation marks! ! ! The greater the harm. )
(The first number is the element serial number, followed by the element name, followed by the element chemical symbol in brackets)
The human body needs a total of 35 elements, and if it is lacking or excessive, it will get sick.
1. Hydrogen (H)H)@ @ constitutes the most basic element of human body, accounting for about 10% of the whole body weight. Hydrogen is contained in water. If you drink water regularly, your body will not be short of hydrogen. You don't need to replenish it deliberately, just drink water.
2. Helium (He) is the lightest inert gas, which is nontoxic and tasteless and has no influence on human body.
3. Lithium (Li)@ Lithium is an essential element for human body, which can improve human hematopoietic and immune functions. Everyone needs 0. 1 mg, which can affect people's mood. If they have it, they will be happy, but if they don't, they will be depressed. Sexual dysfunction, shortened life expectancy, and even suicide or crime. Eggs, milk, fish, potatoes and vegetables all contain lithium, and Chinese medicines such as lily and albizzia bark contain more lithium.
4. Yes! ! Beryllium is not an essential element for human body, but it is toxic, but it can be excreted when ingested occasionally, and it will not accumulate in the body.
5. Boron (B)@ Boron is an essential element for human body. Organic boron contained in plants is beneficial to human body. Boron can increase bone density, accelerate bone healing, enhance muscle function and improve brain response. Boron deficiency can lead to hypertension and arthritis, which requires 65,438+0 ~ 2 mg per day, but inorganic boron is harmful to human body. Foods containing more boron are soybeans, raisins, almonds, peanuts, pine nuts, hazelnuts, red dates, papaya and honey.
6. Carbon (C)@ @ is the most basic element of human body, accounting for about 18% of the whole body weight. It is an important part of food. As long as you eat food, your body will not be short of carbon. If you are short of carbon, you will be hungry and want to eat. If you have rice in your stomach, you won't be short of carbon.
7. Nitrogen (N) is the most basic element in protein, accounting for about 3% of the whole body weight. People need 50 grams of protein every day. If people are short of nitrogen (no matter what protein is, its nitrogen content is 6.25%), they will feel greedy and want to eat meat.
8. Oxygen (O)@ is the most basic element of human body, accounting for about 65% of the whole body weight. It exists in water and is absorbed by breathing. Human hypoxia is often caused by environmental reasons, such as poor ventilation, high altitude and excessive humidity. Then there was something wrong with the lungs and trachea. The lack of oxygen in human body is mainly due to poor breathing, which has nothing to do with food.
9. Fluorine (F)@ Fluorine is an essential element for human bones and teeth. Without it, you will get dental caries and need 0. 1 mg every day. Eating too much is not good, and your teeth will turn yellow. Foods rich in fluorine include fish, shrimp, kelp, laver, jellyfish, tea and mineral water.
10.Ne (norepinephrine) ne is an inert gas, which is not found in human body, and it has no effect on human body if inhaled occasionally.
1 1. Sodium (Na)@ is an essential element for human metabolism, accounting for about 0. 15% of body weight. Salt contains it, and the human body needs 6 grams of salt every day, but it is best not to exceed 10 grams. The best salt is bamboo salt, which is rich in trace elements, followed by raw sea salt, and the worst is.
12. Magnesium (Mg)@ Mg is an essential element for human body, and everyone needs 350 mg. Magnesium deficiency can reduce blood calcium and cramps. In severe cases, osteoporosis, memory loss, insanity and muscle weakness will occur. Plants contain magnesium, and the two foods containing the most magnesium are laver and sea cucumber (more than 1000). Pine nuts, hazelnuts and watermelon seeds also contain more magnesium (more than 400, which means milligrams per100g, the same below), and the contents of bananas, beans, mushrooms and sesame seeds are also quite high (about 300).
13. aluminum! Aluminum is a harmful element to human body. The main causes of Alzheimer's disease are fried dough sticks, vermicelli, vermicelli and puffed food.
14. Silicon (Si)@ Si is an essential element for human body, which will gradually decrease with age. Lack of silicon is prone to cardiovascular diseases, organ atrophy and skeletal deformities. Everyone needs 20 mg, but they must eat it, but they can't inhale it. Inhalation of silicon-containing dust can cause silicosis. Silicon exists widely in the epidermis of plant seeds. Rice and white flour do not contain silicon, but bran and rice bran contain silicon. Only edible seeds with skins contain silicon, such as corn, beans and other miscellaneous grains, peeled sweet potatoes, potatoes, lotus roots and so on. And metasilicic acid in natural mineral water also contains silicon.
15. Phosphorus is the most important element in human metabolism, an important part of bones, teeth and brain, and an important genetic material. It participates in all life activities. Phosphorus and calcium should be in a certain proportion, children and adolescents need 1g/ day, adults need 0.7g/ day, kelp, laver, beans, nuts and so on.
16. Sulfur is the most important element in human metabolism and exists in all protein. The content of sulfur in human hair, skin and nails is the highest, and the content of sulfur in garlic, green onion, onion, cabbage, radish, nuts, beans and cereals is the highest. Sulfur can resist cancer, prevent blood coagulation, eliminate free radicals, resist aging and expel lead. Can prevent diabetes and hepatitis.
17. Chlorine (Cl) is an important element in human activities, accounting for about 0. 15% of body weight. Chlorine can keep water in the body and maintain acid-base balance, and it is the main component of digestive juice in the stomach. Chlorine can introduce carbon dioxide from the body into the blood, and the carbon dioxide in the blood is contained in salt. Without salt, people will have muscle weakness, extreme fatigue and premature whitening. Eating salt can supplement chlorine. But chlorine is toxic and can't be inhaled.
18. Argon (ar) is an inert gas slightly heavier than air, which does not exist in human body, and air accounts for 0.93%. Inhaling a small amount has no effect on human body.
19. Potassium is an important element necessary for human activities. There is potassium in human cells and sodium outside cells; Chlorine, potassium and sodium are the three most important elements to maintain the acid-base balance of human body. Vegetables and fruits contain a lot of potassium. Potassium deficiency can lead to dizziness, arrhythmia, vomiting, diarrhea, muscle weakness, spasm and heart failure. Specifically, bananas contain the most potassium in food, and raisins, potatoes, meat, milk, cheese, wax gourd and oranges contain more potassium. However, drinking and eating sugar will accelerate the discharge of potassium in the body, leading to potassium deficiency, so try to eat less such acidic foods.
20. Calcium is an important element in bones and teeth. It is the most abundant metal in human body, with 99% in bones and teeth and 65,438+0% in blood. Calcium participates in the functions of more than ten systems such as immunity, nerve, endocrine, digestion, circulation, exercise and reproduction, and participates in the whole process of life evolution and life movement. Calcium deficiency osteoporosis, easy to fracture, calcium deficiency leg cramps in the blood, normal human body needs 800 mg every day. Eating meat and drinking bone soup can't supplement calcium, because most of the calcium in mammals is water-insoluble calcium phosphate in bones. The top four calcium supplements in food are sesame sauce, shrimp skin, cheese and kelp. In addition, black beans, eggs and milk also contain more calcium. Not only does meat contain less calcium, but eating more meat will also lead to osteoporosis, because the human body will accelerate the excretion of calcium in order to maintain the acid-base balance in the body.
2 1. scandium scandium is a rare earth element, which is not an essential element for human body. A small amount is harmless and a large amount is toxic.
22. Titanium (Ti)@ Ti is an essential element for human body, but only organic titanium dissolved in water can be absorbed by human body. Titanium can strengthen physical fitness and resist many diseases. This is a kind of bio-friendly metal. Titanium can balance blood pressure and regulate blood lipid and blood sugar. Anti-aging, whitening and anti-cancer. Can improve muscle motor function. Generally, foods contain less titanium, and only Lycium barbarum and Astragalus membranaceus produced in Gansu, Ningxia and Qinghai and Glycyrrhiza uralensis in Inner Mongolia are rich in organic titanium.
23. Vanadium (V)@ trivalent vanadium is an essential element for human body, which needs 65,438+0.5 μ g/day, but only trivalent organic vanadium dissolved in water can be absorbed by human body. Organic vanadium has many functions, such as promoting the growth of bones and teeth, promoting hematopoietic function, lowering blood sugar, lowering blood lipid, balancing blood pressure, improving human immunity and so on. However, inorganic vanadium is toxic, such as vanadium trioxide (V2O3), vanadium pentoxide (V2O5), vanadium trichloride (VCl3) and ammonium metavanadate (NH4VO3). The higher the price (not the price, but the valence), the greater the toxicity! ! . Foods containing organic vanadium include: cereals, beans, meat, chickens, ducks, fish, shellfish (high content in shells), mushrooms, celery, cucumbers, kelp and so on.
24. Chromium (Cr) Trivalent chromium is an important element necessary for human body. There is 6 mg in normal young people, but with the increase of age, the trivalent chromium in the body is less and less, and it is lower than 1 mg after 50 years old. Trivalent chromium is a longevity factor, which participates in human glucose metabolism, can prevent arteriosclerosis and hypertension, and can resist cancer. Lack of trivalent chromium can lead to cardiovascular disease and diabetes, and adults need 75 micrograms a day. At present, trivalent chromium deficiency is the main cause of hypertension and diabetes. But hexavalent chromium is extremely toxic! ! . Foods containing trivalent chromium include: brown sugar, animal liver, apple peel, banana peel (you can eat it without soaking in water or cooking it), licorice produced in Inner Mongolia, whole wheat flour, potatoes with skin, sweet potatoes with skin, corn, red dates, nuts and so on.
25. Manganese (Mn)@ Mn is an essential element for human body, which can promote bone development, participate in the metabolism of protein, fat and sugar, improve the utilization rate of protein, maintain the normal function of brain, and have the functions of anti-aging, anti-oxidation, cancer prevention and anti-anemia. Manganese deficiency can lead to Alzheimer's disease. It makes people slow down, their memory declines and their movements are uncoordinated. The absorption rate of manganese is only 10 ~ 15%, and the requirement of normal people is 2.5 ~ 5 mg/day. Foods rich in manganese include walnuts, peppers, peppers, star anise, malt, rice bran, sunflower seeds, potatoes, mushrooms and animal livers.
26. Iron (Fe) Iron is an essential element in human blood. The reason why blood and muscles are red is the color of organic iron, and ruddy face is also a sign that there is no iron deficiency. Iron can make blood and muscles carry oxygen and participate in the whole process of human metabolism. Iron participates in hematopoietic function, and iron deficiency can lead to anemia. However, the most abundant iron compound in nature is trivalent iron (Fe2O3, that is, rust) that cannot be absorbed by human body. The human body can only absorb bivalent iron, which depends on eating animals and plants to supplement iron, but excessive iron can lead to cirrhosis or cancer! ! It is easy to take too much iron preparation, but it is generally not excessive to eat iron-containing food, because the human body can selectively absorb it. The best foods for iron supplementation are pig blood, chicken blood and duck blood. Or the heart, liver and kidneys of animals. Jujube and auricularia auricula are the best blood-enriching plants, followed by sesame paste, brown sugar, mushrooms, kelp and walnut kernel. Spinach, shepherd's purse, bitter herbs, amaranth, rape and celery can also be supplemented with iron, and peaches, apricots, plums, cherries and raisins can also be supplemented with iron.
27. Cobalt (Mo)@ Cobalt is an essential element for human body, but it only exists in animals. Vitamin B 12 contains cobalt. If the human body lacks cobalt, it will suffer from giant cell anemia, or loss of appetite, muscle weakness or abnormal bone development, such as hyperosteogeny or disc herniation or dislocation. The total cobalt content of adults is 65438 0.5 mg, that of bones is 65438 0.4%, that of muscles is 43%, that of muscles is 0.65 mg, and that of other soft tissues is 43%, that of other soft tissues is 0.65 mg. Foods rich in cobalt are: animal liver and kidney, especially sheep liver, sheep kidney, deer liver and deer kidney. Secondly, crab meat, oysters and mussels also contain more cobalt. Only red dates, purple grapes and persimmons in fruits contain a little cobalt, while other fruits and vegetables rarely contain cobalt.
28. Nickel (Ni)@ Nickel is an essential element for human body, which almost participates in the whole process of life activities. The consequences of nickel deficiency in human body are very serious, ranging from diabetes and fatty liver to anemia, liver cirrhosis, uremia, renal failure, and even abnormal phospholipid metabolism in severe cases. What the human body needs is organic nickel. There is more nickel in plants than in animal food. Among the plant foods, there are loofah, mushroom, eggplant, onion and so on. However, the content of nickel in meat and seafood of animal foods is slightly higher, such as chicken, mutton, beef, crucian carp, yellow croaker, shrimp and shellfish. But if inorganic nickel enters the human body, too many people will get cancer! ! .
29. Copper (Cu)@ Copper is an essential element for human body. Lack of copper will increase the brittleness of bones and blood vessels, fracture and cerebral hemorrhage easily, and also cause mental retardation, brain atrophy, osteoporosis, baldness and vitiligo. The foods with the richest copper content are: animal liver (2500? G/100g), sesame (1680), spinach (1350), soybean (1300), taro (1290), black bean (/kloc-0). But too much inorganic copper in the body will be poisoned! ! .
30. Zinc is the most essential element for human body. It participates in the whole process of human metabolism, and the repair of human tissues is inseparable from zinc. It is called "flower of life" and is the source of human strength. When the human body is rich in zinc, it is lively and active, and when it is deficient in zinc, it is lazy and easy to sit. Zinc deficiency in young people will lead to decreased sexual desire, oral ulcers, blurred vision, rough skin and even anemia, while zinc deficiency in middle-aged and elderly people will lead to dull taste, loss of appetite, decreased resistance and susceptibility to various diseases and even cancer. However, what the human body needs is water-soluble organic zinc. The zinc content in food is: liver, kidney and whip of animals, oyster, sea cucumber and shrimp skin in seafood. Generally speaking, animal foods are rich in zinc and have high absorption rate. Plant food contains relatively little zinc and its absorption rate is relatively low. Plants contain zinc: Chinese cabbage, soybean, white radish, rice (coarse grains), wheat, whole wheat flour, millet, corn flour, corn, sorghum flour, lentils, potatoes, carrots, purple radish, radish tassels, pumpkins, etc. Rice and white flour do not contain zinc. All kinds of inorganic zinc are harmful to human body! ! .
3 1. gallium (Ga)@ organic gallium has the functions of anti-cancer and strengthening bones, and can prevent and treat Kaschin-Beck disease. Wild ganoderma lucidum contains gallium, which will be poisoned if ingested in large quantities, and renal failure if ingested seriously! ! .
32. Germanium is a magical longevity element. Germanium can resist cancer, balance blood pressure, resist aging, prevent arteriosclerosis, treat chronic hepatitis, prevent leukopenia, and treat osteoporosis and rheumatoid arthritis. The germanium content of wild ganoderma lucidum from Tibet and Qinghai (especially Kunlun Mountain) is the highest, followed by that from Yunguichuan (western Sichuan, not eastern Sichuan). Mushrooms also contain a small amount of germanium, which is a resurrection element, but cultivated Ganoderma lucidum contains almost no germanium. It should be noted that taking too much artificially extracted germanium preparation will cause renal failure! ! ! .
33. Arsenic (As) Arsenic is not an essential element for human body, but the main component of arsenic (As2O3). However, arsenic in the natural environment will inevitably enter the human body with food and water. If the balance of payments is balanced, there will be no adverse effects. A small amount of arsenic can also promote protein's metabolism, enhance human immunity and prevent skin aging, but excessive arsenic can make people get skin cancer or die of poisoning! ! ! (For example: Wu Dalang in the Water Margin).
34. Selenium (Se)@ @ Selenium is an essential element for human body and is known as the "king of anticancer". The daily requirement of adults as "heart protectors" is 65,438+000 micrograms, and 72% of the land in China is deficient in selenium, including three major grain producing areas in Northeast China, Shandong, Shanxi, Henan, Hebei and Jiangsu, which makes 95% of the people in China deficient in selenium. But people who consume more than 400 micrograms a day may be poisoned! ! . Proper selenium can improve human immunity, resist oxidation, delay aging, repair cells, improve oxygen carrying capacity of red blood cells, prevent and treat cardiovascular diseases, stomach diseases, diabetes, thyroid diseases and skin diseases, detoxify, protect eyes and prevent cancer. Selenium is insoluble in hydrochloric acid and cannot be absorbed by human body after eating selenium powder. Only selenium in plants can be absorbed by human body. Selenium-enriched foods (definitely related to the origin) include: sea cucumber, sesame, garlic, mushrooms, shellfish, squid, sea crab, scallop, hairtail, yellow croaker, lobster, pig heart and kidney, shrimp skin and dried shrimp.
35. Bromine (Br)@ @ Bromine is a very important essential element for human body. It can help human body to resist many diseases by participating in all life activities. In the past, people thought that bromine had nothing to do with human body. It took Dr. Billy Hudson of Vanderbilt University 30 years to realize the importance of bromine in 2009. All seafood contains bromine, such as kelp, laver, hairtail, yellow croaker, shrimp skin, prawn, squid and sea crab, but terrestrial plants contain less bromine. But inorganic bromine invades the human body and will be poisoned in large quantities! ! .
Krypton (Kr) Krypton is an inert gas, which is more than twice as heavy as air. Generally, it has no effect on human body, but isotopes are radioactive.
37. Rubidium (Rb)@ Rubidium is an essential element for human body. Rubidium in animals will gradually decrease with age, but rubidium in plants will increase with age. Rubidium can protect the patency of cardiovascular and cerebrovascular diseases, and can treat diseases of nervous system, cardiovascular system, urinary system and senile cataract. Rubidium also has anti-cancer and anticancer effects. The elderly suffer from Alzheimer's disease due to rubidium deficiency, while women have habitual abortion due to rubidium deficiency. Rubidium-containing foods include: shrimp skin, small marine fish, small marine crab, small squid, shrimp, suckling pig, sheep fetus and other young animals; Scutellaria barbata, Hedyotis diffusa and Placenta Hominis (human placenta) contain more rubidium.
38. Strontium (Sr)@ Strontium is an essential element for human body. 99% of strontium exists in bones and teeth, and 1% exists in blood. Strontium deficiency can cause metabolic disorder, and at the same time, it can cause extreme fatigue, sweating, skeletal retardation, osteoporosis, hypertension and even cancer. Animal foods generally do not contain strontium, only sea cucumber, shrimp skin, eggs and milk contain strontium, but plant foods generally contain strontium. Strontium-rich foods include: sea cucumber, hawthorn, red dates, black sesame seeds, seaweed, soybeans, lettuce, wheat (whole wheat instead of flour) and millet. In addition, mineral water also contains strontium (this is the most important indicator of mineral water).
39. yttrium! ! Yttrium is a rare earth element, which is toxic. The human body does not need it and generally does not invade the human body.
40. Zirconium (Zr) is not an essential element and has little influence on human body. But too much is also harmful.
4 1. Niobium is an essential element for human body. Niobium is a kind of bio-friendly metal. If it is lacking in the body, it is easy to get sick. But only organic niobium dissolved in water can be absorbed. Niobium can strengthen physique and resist many diseases. Niobium can balance blood pressure and regulate blood lipid and blood sugar. Anti-aging and anticancer. General foods contain less niobium, and only Lycium barbarum, Astragalus membranaceus and Ganoderma lucidum produced in Panzhihua, Sichuan Province contain more organic niobium. But excessive intake of inorganic niobium is also harmful! ! .
42. Molybdenum is an essential element for human body. Molybdenum can prevent cancer, balance blood pressure, prevent dental caries and kidney calculi, resist aging, prevent arteriosclerosis and Keshan disease, treat chronic hepatitis, prevent leukopenia, and treat osteoporosis and rheumatoid arthritis. Lack of myopia, myocardial infarction, iron deficiency anemia, growth retardation, mental retardation, Kaschin-Beck disease, esophageal cancer. Foods rich in molybdenum are: animal viscera, meat, whole grains, wheat germ, eggs, leafy vegetables and yeast. Specifically, foods with high molybdenum content include soybeans, lentils, radish sprouts, brown rice, beef, mushrooms, grapes and vegetables. But inorganic molybdenum will be poisoned when it enters the human body! ! .
43. Technetium is an artificial element, not an essential element for human body. A small amount is non-toxic and a large amount is toxic.
Ruthenium is a platinum group element. Ruthenium is not an essential element for human body, and its shell content is very small, and its oxides are toxic.
45. Rhodium (Rh) is a platinum group element, and ruthenium is not an essential element for human body. The shell content is very small, and a small amount is harmless to human body.
46. Palladium is a platinum group element, while ruthenium is not an essential element for human body. The shell content is very small, and a small amount is harmless to human body.
47. Silver is an element that is very beneficial to human body. Drinking water from a silver cup is beneficial to the human body and has a strong bactericidal function. General antibiotics can kill 6 kinds of bacteria, up to more than 20 kinds, while a very small amount of silver ions can kill 650 kinds of bacteria. Soup in a silver cup or bowl can be kept for a long time. Silver can promote wound healing. Dai people put a silver bowl in a water tank, and the water in the water tank can be drunk raw without boiling. Dai women wear silver belts, not bucket waists, but snake waists. Silver can prevent the growth of bacteria, soothe the five internal organs, calm the mind, stop palpitations and eliminate evil souls. All silver and silver compounds are non-toxic to human body. Generally speaking, food contains less silver, so using silver tableware or wearing silver jewelry can make people healthy.
48. cadmium (Cd) ! Elements that are harmful to the human body will make people lose their lives. The fewer elements in the human body, the better. Cadmium in some rice exceeded the standard.
49. Indium (In) Indium is harmless to human body. According to mouse experiments, as long as it does not exceed 1%, it will not cause disease.
50. Tin (Sn) is an essential element for human body, which can enhance physical fitness and resist many diseases. Tin plays an important role in various physiological activities and maintaining human health. Tin can resist tumor and inhibit the formation of cancer cells. Tin can promote the synthesis of protein and nucleic acid, which is beneficial to the growth and development of the body; It can promote tissue growth and wound healing, and participate in energy metabolism. Lack of tin in human body will lead to abnormal metabolism of protein and nucleic acid, which will hinder growth and development, especially in children, and even lead to dwarfism in severe cases. Foods rich in tin include chicken breast, beef, lamb chops, rye, lobster, corn, wheat flour, black peas, broad beans, mung beans, sesame seeds, sunflower seeds, mushrooms, beets, cabbage, coffee, honey, peanuts, milk, bananas, hawthorn and garlic.
5 1.Sb！ ! ! Antimony is an element harmful to human body. When antimony invades the human body, people will suffer from many diseases.
52. Tellurium (Te) Tellurium is not an essential element for human body. It doesn't matter if it's missing. If the compound exceeds 1 mg, it will be poisoned.
53. Iodine is an essential element for human body. If it is lacking, it will cause neck roughness, and iodine deficiency in pregnant women will lead to brain development retardation. Iodine is an important part of human thyroid hormone. However, iodine deficiency or iodine excess will do harm to human body. The function of iodine is to promote the decomposition of substances in the body and generate heat and energy. In growth and development, for children, it can promote the growth of bones, muscles and sexual function. The development and growth of nervous system must involve iodine in the secretion of thyroid hormone.
Foods rich in iodine are seafood, such as kelp, seaweed, shellfish and marine fish, which have the highest iodine content; Followed by eggs, milk and meat; However, the iodine content in grains, vegetables and fruits is the lowest. Normal people contain about 30 mg (20 ~ 50 mg) of iodine; Too little Otawa will make you sick.
(Iodine is the last element necessary for human body, arranged by element serial number)
Xenon (Xe) is an inert gas, which is more than twice as heavy as air. Air is scarce and generally has no effect on the human body.
55.cesium! ! Cesium 133 is not an essential element for human body. Cesium 134 and cesium 137 are radioactive and harmful to human health.
56. ba! ! Barium is a toxic element, but barium sulfate, which is insoluble in water and fat, is harmless to human body.
Lanthanides: Lanthanides include 65,438+07 elements, starting with the 57th element La and ending with the 765,438+0 element Lutetium, plus the 39th element Y and the 265,438+0 element Scandium. Lanthanide elements are not essential elements for human body, and their effects on human body are: except yttrium (Y)! ! And scandium! ! Other elements, if the total daily intake does not exceed 65,438+0 mg, can lower blood sugar and fight cancer, but a large intake will destroy the nervous system.
57. lanthanum
58. cerium
59.praseodymium
60. neodymium
6 1. promethium artificial element.
62.samarium
63. Europium (Eu)
64. Gadolinium
65.terbium
66.dysprosium
67. roar (roar)
68.erbium
69. Thulium
70.ytterbium
7 1. Lutetium (Lu) (so much for rare earth elements)
The following elements are all heavy metals, which the human body does not need.
Hafnium! ! Hafnium is not an essential element for human body. Metal hafnium is nontoxic, but all compounds of hafnium are toxic.
73.tantalum! ! Tantalum is not an essential element for human body. Although it is non-toxic, excessive inhalation will deposit in the body and cause diseases.
74.tungsten! ! Tungsten is not an essential element for human body, and too much tungsten deposited on bones will lead to osteoma.
75.Re！ Metal rhenium is non-toxic, but the compound is toxic, but it is not too toxic and too rare to be obtained.
Osmium! ! Platinum group elements and osmium are not essential elements for human body, and the shell content is very small, and the oxide is toxic.
Iridium! Platinum group elements and iridium are not essential elements for human body, and the crust content is very small, and a small amount is harmless to human body.
78. Platinum (Pt)! Platinum group elements and platinum are not essential elements for human body, and the shell content is very small, and a small amount is harmless to human body.
79. Gold (Au)! Gold is not an essential element for human body. Lack of it is good, but more harmful.
Mercury column! ! ! Mercury is harmful to human body, and there is too much bone pain (watery disease) in the body to be discharged.
8 1. thallium! ! ! Thallium has strong neurotoxicity, a small amount of it causes hair loss, striped nails, and more poisoning leads to death.
Lead! ! Lead is not an essential element for human body, and excessive intake of lead will cause many diseases.
83.bismuth! ! Bismuth is not an essential element for human body. Lack of it is harmless, but more harmful. Bismuth poisoning is similar to lead poisoning.
84.polonium! ! ! ! It is the most toxic element, 250 million times stronger than potassium cyanide, and 1 g can kill 1 billion people. Shell is the rarest.
85.At！ ! It is not an essential element for human body. Arsenic 2 13 is highly radioactive.
86. Radon (Rn)! ! Radon is an inert gas, but it is radioactive, and the radioactivity of marble comes from it. The influence of smoking on health is also due to the accumulation of excessive radon in the lungs to form internal radiation and cause diseases.
87.wei! Radioactive elements with a half-life of 2 1 min are very rare in nature and almost inaccessible to human beings.
88.radium! ! ! Radium is so radioactive that ordinary people can't reach it. Neither will the human body.
Actinides: The following elements are not needed by human body and cannot be obtained by ordinary people.
89. actinium (Ac)! ! Radioactive elements are not needed by the human body and are out of reach of ordinary people.
90. Thorium! ! Radioactive elements are not needed by the human body and are out of reach of ordinary people.
9 1. praseodymium (Pa)! ! Radioactive elements are not needed by the human body and are out of reach of ordinary people.
92.uranium! ! ! The raw materials of atomic bomb and nuclear power generation are radioactive and harmful to human body.
Artificial elements: things that only exist in laboratories with short half-lives, which are not needed by the human body and cannot be touched by ordinary people.
93. Neptune!
94.plutonium! ! ! Can make an atomic bomb, 1945.8.9 is a plutonium bomb used in Nagasaki, Japan.
95.Am！ !
96. Curium (cm)! !
97. Thumb (Bk)! !
98. californium !
99.polonium! !
100. AM (FM)! !
10 1.Ru (doctor of medicine)! !
102.Pi (no)! !
103.technetium! !