Sc
Scandium
21
Atomic Number: 21
Atomic mass: 44.9559127
Ionization energy: 633
Electronaffinity: -18
Covalent radius: 144
Calculated radius: 184
Empirical radius: 160
Vanderwaals radius:
Electronegativity: 1.36
Density: 2.99
Oxidation states: 1, 2, 3
Melting point: 1814
Boiling point: 3103
Electron configuration: [Ar] 3d1 4s2
Element group: 3
Element period: 4

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