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Elemental Composition

Atomic

The simplest body components are those that are essentially indestructible: atoms themselves.

Interesting but has few practical uses

Elemental Composition

Element Name

The human body is composed of various elements, some of which are essential for physiological functions, while others may not have any known biological role. Here is a list of elements found in the human body along with their approximate percentage of total body mass:

  1. Oxygen (O) - 65%

  2. Carbon (C) - 18%

  3. Hydrogen (H) - 10%

  4. Nitrogen (N) - 3%

  5. Calcium (Ca) - 1.5%

  6. Phosphorus (P) - 1.0%

  7. Potassium (K) - 0.25%

  8. Sulfur (S) - 0.25%

  9. Sodium (Na) - 0.15%

  10. Chlorine (Cl) - 0.15%

  11. Magnesium (Mg) - 0.05%

These elements make up about 99% of the human body's mass. The remaining 1% consists of trace elements, some of which are essential for physiological functions, while others have no known biological role or are present due to environmental exposure. Trace elements include:

  1. Iodine (I) - 0.000016%

  2. Iron (Fe) - 0.006%

  3. Zinc (Zn) - 0.003%

  4. Copper (Cu) - 0.0001%

  5. Manganese (Mn) - 0.00002%

  6. Fluorine (F) - 0.00003%

  8. Molybdenum (Mo) - 0.00001%

  9. Selenium (Se) - 0.000019%

  10. Cobalt (Co) - 0.000002%

  11. Nickel (Ni) - 0.00001%

  12. Silicon (Si) - 0.00005%

  13. Vanadium (V) - 0.00001%

  14. Tin (Sn) - 0.00001%

  15. Boron (B) - 0.00002%

  16. Cadmium (Cd) - Trace amounts

  17. Barium (Ba) - Trace amounts

  18. Strontium (Sr) - Trace amounts

  19. Tungsten (W) - Trace amounts

  20. Gold (Au) - Trace amounts

  21. Mercury (Hg) - Trace amounts

  22. Aluminum (Al) - Trace amounts

  23. Arsenic (As) - Trace amounts

  24. Bismuth (Bi) - Trace amounts

  25. Lithium (Li) - Trace amounts

  26. Lead (Pb) - Trace amounts

  27. Platinum (Pt) - Trace amounts

  28. Radium (Ra) - Trace amounts

  29. Rubidium (Rb) - Trace amounts

  30. Silver (Ag) - Trace amounts

  31. Thallium (Tl) - Trace amounts

  32. Thorium (Th) - Trace amounts

  33. Uranium (U) - Trace amounts

  34. Zirconium (Zr) - Trace amounts

It's important to note that the percentages provided here are approximate and can vary depending on an individual's age, sex, and overall health. Additionally, the presence of some elements in the human body may be due to environmental exposure and not necessarily indicative of a physiological role.

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