Tc
Technetium (Atomic Number 43)
Category: transition | Period 5, Group 7 | Block: d
Lightest purely synthetic and radioactive element.
Atomic & Physical Constants
- Standard Atomic Weight:
- 98 u
- Standard State Phase:
- Synthetic
- Electron Configuration:
- 2, 8, 18, 13, 2
- Electronegativity (Pauling):
- 1.9
- Melting Point:
- 2430 K
- Boiling Point:
- 4538 K
Historical Discovery & Real-World Applications
Industrial & Scientific Uses
Medical radioisotope imaging (Tc-99m diagnostic scans)
Discovery History
Discovered by Emilio Segrè (1937).
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