Tantalum
Transition Metal
Tantalum (Ta) is a chemical element with atomic number 73, classified as a transition metal. At room temperature it is a solid. It was discovered in 1802 by Anders Gustaf Ekeberg.
Properties
- Atomic number
- 73
- Atomic mass
- 180.95 u
- Category
- Transition Metal
- Group
- 5
- Period
- 6
- Block
- d-block
- Electron configuration
- [Xe] 4f¹⁴ 5d³ 6s²
- Phase at STP
- Solid
- Density
- 16.654 g/cm³
- Melting point
- 3290 K (3016.8 °C)
- Boiling point
- 5731 K (5457.9 °C)
- Electronegativity
- 1.5
- Atomic radius
- 200 pm
- Ionization energy
- 7.55 eV
- Discovery
- 1802 · Anders Gustaf Ekeberg
Common uses
Electronics, medical implants, aerospace, capacitors
Did you know?
Extremely corrosion-resistant and used in medical implants.