Periodic Table of the Elements: Phosphorus

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Periodic Table of the Elements: Phosphorus
Atomic Number:15
Atomic Symbol:P
 Phosphorusphosphorus
[Gr.,=light-bearing], nonmetallic chemical element; symbol P; at. no. 15; at. wt. 30.97376; m.p. 44.1°C;; b.p. about 280°C;; sp. gr. 1.82 at 20°C;; valence −3, +3, or +5.
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Atomic Weight:30.97376
Electron Configuration:2 · 8 · 5
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