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  2. Phosphorus - Wikipedia

    en.wikipedia.org/wiki/Phosphorus

    Phosphorus is a chemical element with the symbol P and the atomic number 15. Elemental phosphorus exists in two major forms, white phosphorus and red phosphorus, but because it is highly reactive, phosphorus is never found as a free element on Earth. It has an occurrence in the Earth's crust of about 0.1%, generally occurring as phosphate in ...

  3. Pnictogen - Wikipedia

    en.wikipedia.org/wiki/Pnictogen

    Phosphorus in the form of phosphates occur in compounds important to life, such as DNA and ATP. Humans consume approximately 1 g of phosphorus per day. [25] Phosphorus is found in foods such as fish, liver, turkey, chicken, and eggs. Phosphate deficiency is a problem known as hypophosphatemia. A typical 70 kg human contains 480 g of phosphorus ...

  4. 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.

  5. Red phosphorus - Wikipedia

    en.wikipedia.org/wiki/Red_phosphorus

    Hittorf's phosphorus, or violet phosphorus, is one of the crystalline forms of red phosphorus. [20] [7] It adopts the following structure: Hittorf's phosphorus chain structure Hitorff's phosphorus crystal structure. Violet phosphorus can be prepared by sublimation of red phosphorus in a vacuum, in the presence of an iodine catalyst. [7]

  6. A U.S.-led military coalition also deployed white phosphorus weapons in Syria and Iraq in its war against ISIS in 2017, according to HRW. Israel, too, previously used the substance during a 2008 ...

  7. Isotopes of phosphorus - Wikipedia

    en.wikipedia.org/wiki/Isotopes_of_phosphorus

    Although phosphorus (15 P) has 22 isotopes from 26 P to 47 P. Only 31 P is stable, thus phosphorus is considered a monoisotopic element. The longest-lived radioactive isotopes are 33 P with a half-life of 25.34 days and 32 P with a half-life of 14.268 days. [3] [4] All others have half-lives of under 2.5 minutes, most under a second.

  8. 50 Random And Interesting Facts You Might Not Know ... - AOL

    www.aol.com/80-random-interesting-facts-might...

    BSc meteorologist Janice Davila tells Bored Panda that one of the most unknown facts from her field of expertise is that weather radars are slightly tilted upward in a half-degree (1/2°) angle.

  9. Hennig Brand - Wikipedia

    en.wikipedia.org/wiki/Hennig_Brand

    The Alchemist Discovering Phosphorus (1771) by Joseph Wright depicting Hennig Brand discovering phosphorus (the glow shown is exaggerated). Hennig Brand (German pronunciation: [ˈhɛnɪç bʁant]; c. 1630 – c. 1692 or c. 1710) was a German alchemist who lived and worked in Hamburg.