The Most Common Elements In The Human Body

Elements are composed of chemical substances which are distinguished by their atomic number. In total there are 117 elements out of which 94 occur naturally on Earth. Human body is made up of different chemical elements. These elements are needed for several chemical reactions in the body to produce energy. There are several metabolisms which require these elements in different organs of human body.

No.	Elements	Average Weight (Grams)	Average Weight (Oz)
1.	Oxygen	45,500	1,608
2.	Carbon	12,600	445
3.	Hydrogen	7,000	247
4.	Nitrogen	2,100	74
5.	Calcium	1,050	37
6.	Phosphorus	700	25
7.	Sulphur	175	6
8.	Potassium	140	5
9.	Chlorine	105	4
10.	Sodium	105	4