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Technetium – Tc

Technetium SymbolTc
Technetium Atomic Number43
Technetium Atomic Mass98 g.mol-1
Discovered byCarlo Perrier and Emilio Segre

It is the lightest element and has a common oxidation state of 7. It has three isotopes which are radioactive and unstable. The isotopes and their atomic mass is as follows:

97Tc = 96.906

98Tc = 97.907

99Tc = 98.906

Chemical Properties of Technetium

Group7 Melting point2157°C, 3915°F, 2430 K
Period5Boiling point4262°C, 7704°F, 4535 K
BlockdDensity (g cm−3)11
Atomic number43Relative atomic mass[98]  
State at 20°CSolid Key isotopes97Tc, 98Tc
Electron configuration[Kr] 4d5s2CAS number7440-26-8
ChemSpider ID22396ChemSpider is a free chemical structure database

What is Technetium?

  • Technetium (Tc) is a chemical element in the periodic table with atomic number 43.
  • It is a silvery-grey radioactive metal which looks similar to platinum.
  • The metals name is derived from the Greek word Tekhnetos which means artificial.

Uses of Technetium

  • Used as a catalyst similar to the way rhenium and palladium are used.
  • Protects steel from corrosion.
  • Certain compounds are helpful in the manufacture of photoelectric nuclear batteries.
  • The metal could be used to map the circulatory system and any disorders.
  • Proposedly could be used in the optoelectric nuclear batteries.

Properties of Technetium

  • The metal is the lightest element that has all isotopes as radioactive and none are stable.
  • Commonly obtained in a powder form which will be in grey colour.
  • Artificially generated through many ways like fission, water disposal, and neutron activation.

Certain Facts About Technetium

  • As it is radioactive metal, it is toxic and harmful to life.
  • The compound of 99Tc is very contaminative in nature and hazardous for life.
  • One must use a safety glove box while handling the chemical.