Comparison of Cadmium and Tellurium

Attribute	Tellurium ×	Cadmium ×
Standard state	Solid	Solid
Electron affinity (eV)	1.971	-
Electron configuration	[Kr]5s²4d¹⁰5p⁴	[Kr]5s²4d¹⁰
Atomic mass (u)	127.6	112.41
Electronegativity (pauling scale)	2.1	1.69
Oxidation states	-2 +4 +6	+2
Ionization energy (eV)	9.01	8.994
Atomic radius (van der waals) (pm)	206	158
Boiling point (K)	1261	1040
Melting point (K)	722.66	594.22
Density (g/cm³)	6.232	8.69
Atomic number	52	48
Group name	Metalloid	Transition metal
Discovered (year)	1782	1817
Symbol	Te	Cd