Atomic number:	56		Atomic weight:	137.327
Shells:	2,8,18,18,8,2		Orbitals:	[Xe] 6s2
Melting point:	725°C		Boiling point:	1897°C
Covalent radius:	1.98	Å	Atomic volume:	39.24	cm³/mol
Atomic radius:	2.78	Å	Ionic radius:	1.42 (+2)	Å
Electronegativity:	0.89		Oxidation states:
1st ionization pot.:	5.2117	V	2nd ionization pot.:	10.004	V
3rd ionization pot.:	--	V	Specific heat:	0.204	J/gK
Heat of fusion:	7.750	kJ/mol	Heat of vapor.:	142.0	kJ/mol
Thermal conduct.:	0.184	W/cmK	Electrical conduct.:	0.030	10^6/cm ohm
Density:	3.51	g/cm³	Valence:	2