-- card: 18050 from stack: in
-- bmap block id: 0
-- flags: 0000
-- background id: 14320
-- name: P


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P

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Phosphorus

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15

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30.97376

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1.82

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44.1 *

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280

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+3,+5

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(Fr. phosphoros, light bearing; ancient name for Venus) Discovered in urine by Brand in 1669. Phosphorus exists in several  allotropic forms: white *, red and black. It is an essential componenet of living systems, found in nervous tissue, bones and cell protoplasm. 

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yellow solid, insoluble in water, ignites in air,highly toxic and caustic to human tissue,stored under water and handled with forceps

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matches,fire works, pesticides, smoke bombs, fertilizer, special glasses,steel production, water softener, cleaning agent

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0.110

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Electron Configuration:

1s  2s  2p  3s  3p  3d  4s  4p  4d  4f  5s  5p  5d  5f  6s  6p  6d  6f  7s 
 2   2    6    2    3