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'''Phosphorus''' is the chemical element that has the symbol P and atomic number 15. The name comes from the Greek: ''phôs'' (meaning "light") and ''phoros'' (meaning "bearer"). A multivalent nonmetal of the [[ | {{SeeWikipedia|Phosphorus}} | ||
'''Phosphorus''' is the chemical element that has the symbol P and atomic number 15. The name comes from the Greek: ''phôs'' (meaning "light") and ''phoros'' (meaning "bearer"). A multivalent nonmetal of the [[Nitrogen]] group, phosphorus is commonly found in inorganic phosphate rocks. | |||
Due to its high reactivity, Phosphorus is never found as a free element in nature on [[Earth]]. One form of Phosphorus (white phosphorus) emits a faint glow upon exposure to [[ | Due to its high reactivity, Phosphorus is never found as a free element in nature on [[Earth]]. One form of Phosphorus (white phosphorus) emits a faint glow upon exposure to [[Oxygen]] (hence its Greek derivation and the [[Latin]] 'light-bearer', meaning the planet Venus as Hesperus or "Morning Star"). | ||
Phosphorus is a component of DNA and RNA and an essential element for all living cells. One form it is found in is in ATP, Adenosine Triphosphate, an energy bearing molecule produced by mitochondria. The most important commercial use of Phosphorus-based chemicals is the production of fertilizers. | Phosphorus is a component of DNA and RNA and an essential element for all living cells. One form it is found in is in ATP, Adenosine Triphosphate, an energy bearing molecule produced by mitochondria. The most important commercial use of Phosphorus-based chemicals is the production of fertilizers. | ||
Phosphorus clouds are present in the atmosphere of [[Threshold]], along with Ammonium Hydrosulfide, white [[Ammonia]], ice crystals, and other gases.<ref>'''[[Halo: First Strike]]''', | Phosphorus clouds are present in the atmosphere of [[Threshold]], along with [[Ammonium Hydrosulfide]], white [[Ammonia]], ice crystals, and other gases.<ref>'''[[Halo: First Strike]]''', page 79</ref> | ||
==Sources== | ==Sources== | ||
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[[Category:Chemical Compounds]] | |||
[[Category:Elements]] | [[Category:Elements]] | ||
