43 Tc
Transition metal
Technetium
First artificially produced element.
Properties of Technetium
- Atomic number (Z)
- 43
- Symbol
- Tc
- Atomic mass
- 98 g/mol
- Category
- Transition metal
- Group
- 7
- Period
- 5
- Electron configuration
- [Kr] 4d⁵ 5s²
- Electronegativity (Pauling)
- 1.9
- Atomic radius
- 183 pm
- First ionization energy
- 702 kJ/mol
- Melting point
- 2430 K (2156.8 °C)
- Boiling point
- 4538 K (4264.9 °C)
- Density
- 11.5 g/cm³
- Phase at 25 °C
- Solid
- Discovered
- Discovered in 1937
Frequently asked questions
What is Technetium?
Technetium (Tc) is a transition metal, element number 43 on the periodic table. First artificially produced element.
What is the atomic number and atomic mass of Technetium?
Technetium has atomic number 43 and an atomic mass of about 98 g/mol.
What is the electron configuration of Technetium?
The electron configuration of Technetium is [Kr] 4d⁵ 5s².
Where is Technetium on the periodic table?
Technetium sits in group 7, period 5, and is classified as a transition metal.