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Atomic Number: 73
Ta
Ta

Tantalum

180.9500 u

Category

transition metal

State at Room Temperature

solid

Electron Configuration

1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f¹⁴ 5d³

Valence Electrons

2

Lewis Dot:••

Electronegativity

1.5

Pauling scale

Oxidation States

+5

Melting Point

3290 K

3016.85°C

Boiling Point

5731 K

5457.85°C

Density

16.69

g/cm³

Position in Table

Group 5Period 6d-block

Discovery

Historical Information

Discovered byAnders Gustaf Ekeberg
Year1802

Common Uses

Applications & Industries

Capacitors, surgical implants, jet engines, superalloys

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