Atomic number:	50		Atomic weight:	118.710
Shells:	2,8,18,18,4		Orbitals:	[Kr] 4d10 5s2 5p2
Melting point:	231.97°C		Boiling point:	2602°C
Covalent radius:	1.41	Å	Atomic volume:	16.3	cm³/mol
Atomic radius:	1.72	Å	Ionic radius:	.71 (+4)	Å
Electronegativity:	1.96		Oxidation states:	(4),2
1st ionization pot.:	7.3438	V	2nd ionization pot.:	14.632	V
3rd ionization pot.:	30.502	V	Specific heat:	0.227	J/gK
Heat of fusion:	7.029	kJ/mol	Heat of vapor.:	295.80	kJ/mol
Thermal conduct.:	0.666	W/cmK	Electrical conduct.:	0.0917	10^6/cm ohm
Density:	7.30	g/cm³	Valence:	2,4