201_Elements_of_the_Human_Body-01.jpg


Summary

Description
English: The main elements that compose the human body, by mass percent, are shown from most abundant to least abundant element. The atomic fractions (fractions of atoms) are different due to differing atomic weights. As in water, oxygen contributes the most mass, but hydrogen is the most common atom.
Date
Source Anatomy & Physiology, Connexions Web site. http://cnx.org/content/col11496/1.6/ , Jun 19, 2013.
Author OpenStax College
Other versions File:201 Elements of the Human Body.02.svg - File:201 Elements of the Human Body-01-es.png

Wikitable alternative

Element Symbol Percentage in Body
Oxygen O 65.0
Carbon C 18.5
Hydrogen H 9.5
Nitrogen N 3.2
Calcium Ca 1.5
Phosphorus P 1.0
Potassium K 0.4
Sulphur S 0.3
Sodium Na 0.2
Chlorine Cl 0.2
Magnesium Mg 0.1
Trace elements include boron , chromium , cobalt , copper , fluorine , iodine , iron , manganese , molybdenum , selenium , silicon , tin , vanadium , and zinc . B, Cr, Co, Cu, F, I, Fe, Mn, Mo, Se, Si, Sn, V, & Zn <1.0

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