48 Cd

Cadmium

Transition metal
Atomic number48
CategoryTransition metal
Atomic mass112.41
Electron configuration[Kr]4d¹⁰ 5s²
Oxidation states+2
Electronegativity1.69
Melting point321 °C
Boiling point767 °C
Density8.65 g/cm³
Crystal structureClose-packed hexagonal
Group12
Period5
Blockd
Discovered1,817
Crustal abundance0.15 ppm

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