Atomic number:	15		Atomic weight:	30.973762
Shells:	2,8,5		Orbitals:	[Ne] 3s2 3p3
Melting point:	44.1°C		Boiling point:	277°C
Covalent radius:	1.06	Å	Atomic volume:	17.0	cm³/mol
Atomic radius:	1.23	Å	Ionic radius:	.17 (+5)	Å
Electronegativity:	2.19		Oxidation states:	±3,(5),7
1st ionization pot.:	10.4867	V	2nd ionization pot.:	19.725	V
3rd ionization pot.:	30.18	V	Specific heat:	0.77	J/gK
Heat of fusion:	0.657	kJ/mol	Heat of vapor.:	12.129	kJ/mol
Thermal conduct.:	0.00235	W/cmK	Electrical conduct.:	1.0e-17	10^6/cm ohm
Density:	1.82	g/cm³	Valence:	3,5