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Atomic Number: 45
Rh
Rh

Rhodium

102.9100 u

Category

transition metal

State at Room Temperature

solid

Electron Configuration

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s¹ 4d⁸

Valence Electrons

1

Lewis Dot:

Electronegativity

2.28

Pauling scale

Oxidation States

+3

Melting Point

2237 K

1963.85°C

Boiling Point

3968 K

3694.85°C

Density

12.41

g/cm³

Position in Table

Group 9Period 5d-block

Discovery

Historical Information

Discovered byWilliam Hyde Wollaston
Year1803

Common Uses

Applications & Industries

Catalytic converters, jewelry plating, optical instruments, thermocouples

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