The Elements in the Human Body?

Answer 1

Most of the human body is made up of water, H2O, with cells consisting of 65-90% water by weight. Therefore, it isn't surprising that most of a human body's mass is oxygen. Carbon, the basic unit for organic molecules, comes in second. 99% of the mass of the human body is made up of just six elements: oxygen, carbon, hydrogen, nitrogen, calcium, and phosphorus.

1. Oxygen (65%)
2. Carbon (18%)
3. Hydrogen (10%)
4. Nitrogen (3%)
5. Calcium (1.5%)
6. Phosphorus (1.0%)
7. Potassium (0.35%)
8. Sulfur (0.25%)
9. Sodium (0.15%)
10. Magnesium (0.05%)
11. Copper, Zinc, Selenium, Molybdenum, Fluorine, Chlorine, Iodine, Manganese, Cobalt, Iron (0.70%)
12. Lithium, Strontium, Aluminum, Silicon, Lead, Vanadium, Arsenic, Bromine (trace amounts)
    

Answer 2

The main elements found in the human body are oxygen, carbon, hydrogen, and nitrogen, which make up about 96% of its mass. Other essential elements include calcium, phosphorus, potassium, sulfur, sodium, chloride, and magnesium, which are needed in smaller amounts for various physiological functions. Trace elements like iron, zinc, copper, and iodine are also crucial for proper body function, even though they are present in very small quantities.