Element Technetium

Technetium ElementIt is a chemical element with the symbol Tc and atomic number 43. Technetium atom is a manganese group element atom.
The first artificially produced element and a radioactive fission product of URANIUM. Technetium has the atomic symbol Tc, and atomic number 43.
All technetium isotopes are radioactive. Technetium 99m (m=metastable) which is the decay product of Molybdenum 99, has a half-life of about 6 hours and is used diagnostically as a radioactive imaging agent.
Technetium 99 which is a decay product of technetium 99m, has a half-life of 210,000 years.

Names and Identifiers

Chemical Formula:Tc
CAS:7440-26-8
Molecular Weight:98.00000g/mol
EC Number :n/a
MDL Number:n/a
Color:silver-gray/silvery gray metallic
Other Names:n/a
PubChem CID:n/a
IUPAC Name:Technetium
Inchl:InChI=1S/Tc
InChI Key:GKLVYJBZJHMRIY-UHFFFAOYSA-N
Canonical SMILES:[Tc]
ICSC Number:n/a

Physical & Chemical Properties

Phase:Solid
Density:11 g/cm³
Boiling Point:4538 K ​(4265 °C, ​7709 °F)
Melting Point:2430 K ​(2157 °C, ​3915 °F)
Molecular Formula:Tc
Flash Point:n/a
Exact Mass:97.90720

Technetium (43Tc) is the first of the two elements lighter than bismuth that have no stable isotopes; the other such element is promethium.

Radiosotope data

IsotopeMass/DaHalf-lifeMode of decayNuclear spinNuclear magnetic moment
93Tc92.9102482.73 hEC to 93Mo9/26.26
94Tc93.9096554.88 hEC to 94Mo75.08
95Tc94.9076620.0 hEC to 95Mo9/25.89
96Tc95.907874.3 dEC to 96Mo75.04
97Tc96.9063642.6 x 106 yEC to 97Mo9/2
98Tc97.907215 (4)4.2 x 106 yβ to 98Ru6
99Tc98.907213000 yβ to 99Ru9/25.6847

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