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Atomic Number: 75
Re
Re

Rhenium

186.2100 u

Category

transition metal

State at Room Temperature

solid

Electron Configuration

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d⁵

Valence Electrons

2

Lewis Dot:••

Electronegativity

1.9

Pauling scale

Oxidation States

+4+6+7

Melting Point

3459 K

3185.85°C

Boiling Point

5869 K

5595.85°C

Density

21.02

g/cm³

Position in Table

Group 7Period 6d-block

Discovery

Historical Information

Discovered byWalter Noddack, Ida Tacke, Otto Berg
Year1925

Common Uses

Applications & Industries

Jet engines, catalysts, thermocouples, mass spectrometers

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