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ScandiumSc Electron 1 Electron 2 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 1 Electron 2 Electron 3 Electron 4 Electron 5 Electron 6 Electron 7 Electron 8 Electron 9 Electron 1 Electron 2

Scandium is a chemical element with symbol Sc and atomic number 21. A silvery-white metallic d-block element, it has historically been sometimes classified as a rare earth element, together with yttrium and the lanthanoids. It was discovered in 1879 by spectral analysis of the minerals euxenite and gadolinite from Scandinavia.

21 Atomic Number
44.96  u Atomic Mass
1812.15  K Melting Point
3109  K Boiling Point
2.98  g/cm³ Density
2.1  Å Atomic Radius
1.7  Å Covalent Radius
1.36 Electronegativity
6.56  eV First Ionization Energy
18 Electron Affinity
4 Number of Shells
2, 8, 9, 2 Electron Shell Occupations
0.57  J/g Specific Heat