Atomic number:	58		Atomic weight:	140.115
Shells:	2,8,18,18,8,2		Orbitals:	[Xe] 4f1 5d1 6s2
Melting point:	798°C		Boiling point:	3433°C
Covalent radius:	1.65	Å	Atomic volume:	20.67	cm³/mol
Atomic radius:	2.70	Å	Ionic radius:	1.14 (+3)	Å
Electronegativity:	1.12		Oxidation states:	(3),4
1st ionization pot.:	5.5387	V	2nd ionization pot.:	10.851	V
3rd ionization pot.:	20.20	V	Specific heat:	0.19	J/gK
Heat of fusion:	5.460	kJ/mol	Heat of vapor.:	414.0	kJ/mol
Thermal conduct.:	0.114	W/cmK	Electrical conduct.:	0.0115	10^6/cm ohm
Density:	6.78	g/cm³	Valence:	3,4