Nitrogen

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A basic depiction of nitrogen, symbol N, the 7th element of the periodic table, comprised of 7 protons, 7 neutrons, and 7 electrons.

In chemistry, nitrogen (TR:124) (LH:13) (TL:137), symbol N, the 7th element of the periodic table, is an atom comprised of 7 protons, 7 neutrons, and 7 electrons.

Overview

See main: Elemental composition of humans; Thims periodic table

The following is an early estimate of the percent nitrogen in humans:

“The human body contains carbon 13.5%, hydrogen 9.1%, oxygen 72%, nitrogen 2.5%, phosphorus 1.15%, sodium 0.1 %, calcium 1.3%, magnesium 0.001%, iron 0.01%, and traces of silicon and fluorine.”
— Carl Kelsey (1916), The Physical Basis of Society (pg. 7) [1]

Presently, it is known that in humans, nitrogen is the 4th most dominant element, by mass composition (2.6% mass), of the 26-elements in the standard human molecular formula.[2]

Quotes

The following are quotes on nitrogen:

“Why should a group of simple, stable compounds of carbon (C), hydrogen (H), oxygen (O), and nitrogen (N), 'struggle' for billions of years to organize themselves into a professor of chemistry? What's the motive?”
Robert Pirsig (1991), Lila: an Inquiry into Morals (pg. 162) [3]

End matter

References

  1. Kelsey, Carl. (1916). The Physical Basis of Society (pg. 7). D. Appleton and Company.
  2. Thims, Libb. (2008). The Human Molecule (GB) (Amz) (Iss) (elemental composition table, pgs. 52-55). LuLu.
  3. Pirsig, Robert M. (1991). Lila: An Inquiry into Morals (struggle, 5+ pgs; quote, pg. 162). Random House, 2013.

External links

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