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  2. Phosphorus - Wikipedia

    en.wikipedia.org/wiki/Phosphorus

    Phosphorus is classified as a pnictogen, together with nitrogen, arsenic, antimony, bismuth, and moscovium. Phosphorus is an element essential to sustaining life largely through phosphates, compounds containing the phosphate ion, PO 4 3−. Phosphates are a component of DNA, RNA, ATP, and phospholipids, complex compounds fundamental to cells.

  3. Biological roles of the elements - Wikipedia

    en.wikipedia.org/wiki/Biological_roles_of_the...

    Toxic in some forms; pure phosphorus is poisonous to humans. [11] platinum: 78: 2c: Has no known biological role, but it is a component of the drug cisplatin, which is highly effective in treating some forms of cancer. [11] Toxic in some forms. Contact can promote an allergic reaction in humans. [11] plutonium: 94: 1bc

  4. Phosphorous - Wikipedia

    en.wikipedia.org/wiki/Phosphorous

    Phosphorous can refer to: Phosphorus in the lower of its two most common oxidation states, P(III) (e.g., phosphorous acid , phosphorous anhydride ) A common misspelling of the element name phosphorus

  5. White phosphorus - Wikipedia

    en.wikipedia.org/wiki/White_phosphorus

    White phosphorus, yellow phosphorus, or simply tetraphosphorus (P 4) is an allotrope of phosphorus. It is a translucent waxy solid that quickly yellows in light (due to its photochemical conversion into red phosphorus ), [ 2 ] and impure white phosphorus is for this reason called yellow phosphorus.

  6. Allotropes of phosphorus - Wikipedia

    en.wikipedia.org/wiki/Allotropes_of_phosphorus

    White phosphorus, yellow phosphorus or simply tetraphosphorus (P 4) exists as molecules of four phosphorus atoms in a tetrahedral structure, joined by six phosphorusphosphorus single bonds. [1] The free P 4 molecule in the gas phase has a P-P bond length of r g = 2.1994(3) Å as was determined by gas electron diffraction . [ 2 ]

  7. Should We Be Concerned About Peak Phosphorus? - AOL

    www.aol.com/2014/02/23/should-we-be-concerned...

    Along with nitrogen and potassium, phosphorus is an essential ingredient for fertilizers. Fertilizers have played a key part in the Green Revolution, which has helped feed an extra 4.2.

  8. CHNOPS - Wikipedia

    en.wikipedia.org/wiki/CHNOPS

    Graphic representation of carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulfur. 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. [1] "CHNOPS" adds phosphorus and ...

  9. Investigations find Israel used white phosphorus made in the US

    www.aol.com/news/investigations-israel-used...

    White phosphorus is an incendiary weapon and can cause extreme burns. Other outlets have corroborated allegations that white phosphorus was used in those areas at around that time.