Tc
Technetium
43
Atomic Number: 43
Atomic mass: [98]
Ionization energy: 702
Electronaffinity: -53
Covalent radius: 156
Calculated radius: 183
Empirical radius: 135
Vanderwaals radius:
Electronegativity: 1.9
Density: 11.5
Oxidation states: -3, -1, 1, 2, 3, 4, 5, 6, 7
Melting point: 2430
Boiling point: 4538
Electron configuration: [Kr] 4d5 5s2
Element group: 7
Element period: 5

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