73
Ta
180.95
Tantalum
Element 73 · 180.95 u · d-block
transition metal
An extremely corrosion-resistant metal. Used in capacitors for electronics, surgical implants, and jet engines.
Phase (STP)
Solid
Melting Point
3017 °C
Boiling Point
5458 °C
Density
16.654 g/cm³
Electronegativity
1.5
Atomic Radius
145 pm
Ionization Energy
761 kJ/mol
Electron Affinity
31 kJ/mol
Discovered
1802 · Anders Gustaf Ekeberg
Electron Configuration
[Xe] 4f14 5d3 6s2
Electron Orbitals
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