Atomic number:	52		Atomic weight:	127.60
Shells:	2,8,18,18,6		Orbitals:	[Kr] 4d10 5s2 5p4
Melting point:	449.5°C		Boiling point:	989.9°C
Covalent radius:	1.36	Å	Atomic volume:	20.5	cm³/mol
Atomic radius:	1.42	Å	Ionic radius:	.97 (+4)	Å
Electronegativity:	2.1		Oxidation states:	-2,(4),6
1st ionization pot.:	9.0096	V	2nd ionization pot.:	18.60	V
3rd ionization pot.:	27.96	V	Specific heat:	0.20	J/gK
Heat of fusion:	17.490	kJ/mol	Heat of vapor.:	52.550	kJ/mol
Thermal conduct.:	0.0235	W/cmK	Electrical conduct.:	2.0e-6	10^6/cm ohm
Density:	6.24	g/cm³	Valence:	2,4,6