Atomic number:	64		Atomic weight:	157.25
Shells:	2,8,18,25,9,2		Orbitals:	[Xe] 4f7 5d1 6s2
Melting point:	1313°C		Boiling point:	3273°C
Covalent radius:	1.61	Å	Atomic volume:	19.9	cm³/mol
Atomic radius:	2.54	Å	Ionic radius:	1.05 (+3)	Å
Electronegativity:	1.20		Oxidation states:
1st ionization pot.:	6.1500	V	2nd ionization pot.:	12.095	V
3rd ionization pot.:	20.635	V	Specific heat:	0.23	J/gK
Heat of fusion:	10.050	kJ/mol	Heat of vapor.:	359.40	kJ/mol
Thermal conduct.:	0.106	W/cmK	Electrical conduct.:	0.00736	10^6/cm ohm
Density:	7.895	g/cm³	Valence:	3