What is The most abundant ion in human body?

Answer 1

I can name more than four ions in the human body, but I will list the four most common ones first.

1.) Sodium - Na+

2.)Potassium - K+

3.) Calcium - Ca++

4.) Magnesium - Mg++

5.) Chloride - Cl-

6.) Hydrogen - H+

7.) Hydroxide - OH-

8.) Phosphate - PO4---

9.) HCO3-

Some might argue that Hydrogen and Hydroxide are the most common and I would agree, but to people who do not know Chemistry would find the top four that I listed as the most common.

Answer 2

The most common ion is calcium Ca2+, which is used in the human body in combination with carbonate CO32-, hydroxide OH- and phosphate PO43-; these ions form the mineral hydroxylapatite Ca10(PO4)6(OH)2, which is the main component of bones and, with parts of the hydroxides exchanged by fluoride F-, in the enamel of teeth. In ionic form, Ca2+ is one of the electrolytes responsible for muscle contraction, amongst other things (please see also link "calcium in Biology").

Other common ions are magnesium Mg2+ (various functions, see "magnesium in biology" for details), sodium Na+ and potassium K+, but also hydrogencarbonate HCO3-, phosphate PO43- and chloride Cl-. These are the main ions in the human body, except H+ and OH-, which are, of course, in an equilibrium of pH 5.3-7.6 in the water of blood and body. In the stomach, the H+ ion concentration can be as high as pH 1, whereas the OH- concentration in the bowel can be as high as pH 9, and both are essential for digestion.

It would be far beyond the scope of this answer to explain each and every ion and its physiological function in the human body, but you can find more information in the linked articles.

Answer 3

Potassium, sodium, calcium, magnesium, chloride and bicarbonate are the six main ions in your body. Out of these the potassium ion is in maximum quantity in your body. Although you do not add the same in your food normally.

Answer 4

Na (sodium)

K (potassium)

Cl (chlorine)

Answer 5

Calcium, Ca