Atomic number:	60		Atomic weight:	144.24
Shells:	2,8,18,22,8,2		Orbitals:	[Xe] 4f4 6s2
Melting point:	1021°C		Boiling point:	3074°C
Covalent radius:	1.64	Å	Atomic volume:	20.6	cm³/mol
Atomic radius:	2.64	Å	Ionic radius:	--	Å
Electronegativity:	1.14		Oxidation states:
1st ionization pot.:	5.5250	V	2nd ionization pot.:	10.727	V
3rd ionization pot.:	22.076	V	Specific heat:	0.19	J/gK
Heat of fusion:	7.140	kJ/mol	Heat of vapor.:	273.0	kJ/mol
Thermal conduct.:	0.165	W/cmK	Electrical conduct.:	0.0157	10^6/cm ohm
Density:	7.0	g/cm³	Valence:	3