Template:Infobox phosphorus

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15 silicon ← phosphorus → sulfur N ↑ P ↓ As Periodic table - Extended periodic table
General
Name, symbol, number	phosphorus, P, 15
Chemical series	nonmetals
Group, period, block	15, 3, p
Appearance	waxy white/ red/ black/ colorless/ yellow
Standard atomic weight	30.973762(2) g·mol−1
Electron configuration	[Ne] 3s2 3p3
Electrons per shell	2, 8, 5
Density (near r.t.)	(white) 1.823 g·cm−3
Density (near r.t.)	(red) 2.34 g·cm−3
Density (near r.t.)	(black) 2.69 g·cm−3
Melting point	(white) 317.3 K (44.2 °C, 111.6 °F)
Boiling point	550 K (277 °C, 531 °F)
Heat of fusion	(white) 0.66 kJ·mol−1
Heat of vaporization	12.4 kJ·mol−1
Specific heat capacity	(25 °C) (white) 23.824 J·mol−1·K−1
Vapor pressure (white) P/Pa 1 10 100 1 k 10 k 100 k at T/K 279 307 342 388 453 549
Vapor pressure (red) P/Pa 1 10 100 1 k 10 k 100 k at T/K 455 489 529 576 635 704
Oxidation states	5, 4, 3, 2 [1], 1 [2], -3 (mildly acidic oxide)
Electronegativity	2.19 (Pauling scale)
Ionization energies (more)	1st: 1011.8 kJ·mol−1
	2nd: 1907 kJ·mol−1
	3rd: 2914.1 kJ·mol−1
Atomic radius	100 pm
Atomic radius (calc.)	98 pm
Covalent radius	106 pm
Van der Waals radius	180 pm
Miscellaneous
Magnetic ordering	no data
Thermal conductivity	(300 K) (white) 0.236 W·m−1·K−1
Bulk modulus	11 GPa
CAS registry number	7723-14-0
Selected isotopes
Main article: Isotopes of phosphorus iso NA half-life DM DE (MeV) DP 31P 100% 31P is stable with 16 neutrons 32P syn 14.28 d β- 1.709 32S 33P syn 25.3 d β- 0.249 33S
References
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