73
180.948 u
Ta
Tantalum
Transition Metal
Atomic Structure
Physical State
Group
5
Period
6
Block
d
Electron Configuration
[Xe] 4f¹⁴ 5d³ 6s²
Physical Properties
Atomic Mass:
180.948 u
Electronegativity:
1.5
Atomic Radius:
200 pm
Ionization Energy:
7.89 eV
Density:
16.654 g/cm³
Melting Point:
3290 K
Boiling Point:
5731 K
Historical Information
Discovered By:
Anders Gustaf Ekeberg
Year Discovered:
1802