CHNOPS

CHNOPS and CHON are mnemonic acronyms for the most common elements in living organisms. "CHON" stands for carbon, hydrogen, oxygen, and nitrogen, which together make up more than 95 percent of the mass of biological systems. "CHNOPS" adds phosphorus and sulfur.

"CHON" redirects here. For people named Chon, see Chon (name). For other uses, see Chon (disambiguation).

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