Atomic number:	3		Atomic weight:	6.941
Shells:	2,1		Orbitals:	[He] 2s1
Melting point:	180.54°C		Boiling point:	1342°C
Covalent radius:	1.23	Å	Atomic volume:	13.10	cm³/mol
Atomic radius:	2.05	Å	Ionic radius:	.76	Å
Electronegativity:	0.98		Oxidation states:
1st ionization pot.:	5.3917	V	2nd ionization pot.:	76.638	V
3rd ionization pot.:	122.451	V	Specific heat:	3.6	J/gK
Heat of fusion:	3.00	kJ/mol	Heat of vapor.:	145.920	kJ/mol
Thermal conduct.:	0.847	W/cmK	Electrical conduct.:	0.108	10^6/cm ohm
Density:	0.53	g/cm³	Valence:	1