45 Rh

Rhodium

Transition metal
Atomic number45
CategoryTransition metal
Atomic mass102.91
Electron configuration[Kr]4d⁸ 5s¹
Oxidation states+3
Electronegativity2.28
Melting point1,964 °C
Boiling point3,695 °C
Density12.41 g/cm³
Crystal structureFace-centred cubic
Group9
Period5
Blockd
Discovered1,803
Crustal abundance0.001 ppm

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