Atomic number:	4		Atomic weight:	9.012182
Shells:	2,2		Orbitals:	[He] 2s2
Melting point:	1287°C		Boiling point:	2472°C
Covalent radius:	0.90	Å	Atomic volume:	5.0	cm³/mol
Atomic radius:	1.40	Å	Ionic radius:	.45 (+2)	Å
Electronegativity:	1.57		Oxidation states:
1st ionization pot.:	9.3226	V	2nd ionization pot.:	18.211	V
3rd ionization pot.:	153.893	V	Specific heat:	1.82	J/gK
Heat of fusion:	12.20	kJ/mol	Heat of vapor.:	292.40	kJ/mol
Thermal conduct.:	2.00	W/cmK	Electrical conduct.:	0.313	10^6/cm ohm
Density:	1.848	g/cm³	Valence:	2