43
Tc
Technetium
Technetium
Technetium (Tc)
Transition Metals · Solid · Period 5 · Group 7
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Element Properties
- Atomic Number
- 43
- Symbol
- Tc
- Atomic Mass
- 96.9064
- Category
- Transition Metals
- Standard State
- Solid
- Period
- 5
- Group
- 7
- Electronegativity
- 1.9
- Atomic Radius
- 209
- Ionization Energy
- 7.28
- Electron Affinity
- 0.55
- Oxidation States
- +7, +6, +4
- Melting Point
- 2430 K (2156.85 °C)
- Boiling Point
- 4538 K (4264.85 °C)
- Density
- 11
- Electron Configuration
- [Kr]5s2 4d5
- Year Discovered
- 1937
Frequently asked questions
What is the atomic number of Technetium?
The atomic number of Technetium is 43, which equals the number of protons in its nucleus.
What is the atomic mass of Technetium?
The atomic mass of Technetium is approximately 96.9064 u (one twelfth of the mass of a carbon-12 atom).
What is the electron configuration of Technetium?
The electron configuration of Technetium is [Kr]5s2 4d5.
Where is Technetium in the periodic table?
Technetium is located in period 5, group 7.
When was Technetium discovered?
Technetium was discovered in 1937.