PHOSPHORUS

PHOSPHORUS (15)  15P=32(14.26 days)B-
Atomic radius:1.23DEg. A (Quantum mech. value for a free atom)
Atomic volume:17.0 cm(3)/mol at 300Deg. Kelvin
Atomic weight:30.97376 (Based on Carbon 12)
Boiling point:550Deg. Kelvin
Covalent radius:1.06Deg. A
Crystal structure:Monoclinic
Density:1.82 g/cm(3) at 300Deg. Kelvin
Electrical conductivity:
Electron configuration:1s(2)2s(20p(6)3s(2)p(3)
Electronegativity:2.19 (Pauling's)
First ionization potential:10.486 V
Heat of fusion:.657 kJ/mol at melting point
Heat of vaporization:12.129 kJ/mol at boiling point
Melting point:317.3Deg. Kelvin
Oxidation states:+-3,5,4 acidic
Specific heat capacity:.77 Jg(x.1) K(x.1) at 300Deg. Kelvin
Thermal conductivity:.00235 W cm(x.1) K(x.1) at 300Deg. Kelvin
Description:A nonmetallic element of the nitrogen family that occurs widely as
a phosphate.

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