Periodic table of elements

43 - Technetium [Tc]

43: Technetium - Technetium [Tc]
Group: 7
Period: 5
Atomic number: 43
Atomic mass: 98
Configuration: [Kr] 4d55s2
Atomic radius: 183 pm
Covalent radius: 147 pm
Electron affinity: 53 eV
Ionization energy: 7.28 eV
Electronic term: 6S5/2
Mass fraction in the earth crust: 0
Mass fraction in the earth space: 0
Electronegativity: 1.9

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