Posporo

Phosphorus
15P
N ↑ P ↓ As Periodic table silicon ← phosphorus → sulfur
Appearance
colourless, waxy white, yellow, scarlet, red, violet, black waxy white (yellow cut), red (granules centre left, chunk centre right), and violet phosphorus
General properties
Name, simbolo, kaiphan	phosphorus, P, 15
Pronunciation	Plantilya:IPAc-en Plantilya:Respell
Element category	wala puthaw
Group, period, block	15, 3, p
Standard atomic weight	30.973762(2)
Electron configuration	[Ne] 3s2 3p3 2, 8, 5
History
Discovery	Hennig Brand (1669)
Recognized as an element by	Antoine Lavoisier (1777)
Physical properties
Phase	magahi
Density (near r.t.)	(white) 1.823, (red) ≈ 2.2 – 2.34, (violet) 2.36, (black) 2.69 g·cm−3
Melting point	(white) 44.2 °C, (black) 610 °C
Sublimation point	(red) ≈ 416 – 590  °C, (violet) 620 °C
Boiling point	(white) 280.5 °C
Heat of fusion	(white) 0.66 kJ·mol−1
Heat of vapourisation	(white) 12.4 kJ·mol−1
Molar heat capacity	(white) 23.824 J·mol−1·K−1
Vapour pressure (white)
P (Pa) 1 10 100 1 k 10 k 100 k at T (K) 279 307 342 388 453 549
Vapour pressure (red, bp. 431 °C)
P (Pa) 1 10 100 1 k 10 k 100 k at T (K) 455 489 529 576 635 704
Atomic properties
Oxidation states	5, 4, 3, 2, 1, −1, −2, −3 (mildly acidic oxide)
Electronegativity	2.19 (Pauling scale)
Ionisation energies (more)	1st: 1011.8 kJ·mol−1
	2nd: 1907 kJ·mol−1
	3rd: 2914.1 kJ·mol−1
Covalent radius	107±3 pm
Van der Waals radius	180 pm
Miscellanea
Crystal structure	triclinic
Magnetic ordering	(white, red, violet, black) diamagnetic
Thermal conductivity	(white) 0.236, (black) 12.1 W·m−1·K−1
Bulk modulus	(white) 5, (red) 11 GPa
CAS registry number	7723-14-0
Most stable 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

Ang posporo (Iningles phosphorus) mao ang elementong kimiko sa talaang peryodiko nga may simbolo nga P ug kaiphan nga atomik 15. Ang posporo mao ang wala puthaw.

Galeriya sa hulagway

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