Atomic number:	53		Atomic weight:	126.90447
Shells:	2,8,18,18,7		Orbitals:	[Kr] 4d10 5s2 5p5
Melting point:	113.5°C		Boiling point:	184.35°C @ 35 atmos.
Covalent radius:	1.33	Å	Atomic volume:	25.74	cm³/mol
Atomic radius:	1.32	Å	Ionic radius:	2.20 (-1)	Å
Electronegativity:	2.66		Oxidation states:	(±1),5,7
1st ionization pot.:	10.4513	V	2nd ionization pot.:	19.131	V
3rd ionization pot.:	33.0	V	Specific heat:	0.214	J/gK
Heat of fusion:	7.824	kJ/mol	Heat of vapor.:	20.752	kJ/mol
Thermal conduct.:	0.00449	W/cmK	Electrical conduct.:	8.0e-16	10^6/cm ohm
Density:	4.93	g/cm³	Valence:	1,3,5,7