Scandium |
| Symbol | Sc |
|---|---|
| Latin name | Scandium |
| Atomic number | 21 |
| Period | 4 |
| Element category | Transition elements |
| Relative atomic mass | 44.955910 |
| Group | III.B |
| Electronegativity | 1.3 |
| Oxidation numbers | 3 |
| Electron configuration | 1s2 2s2 2p6 3s2 3p6 3d1 4s2 |
| Density [g/cm3] | 2.989 |
| State | Solid |
| Melting point [°C] | 1541 |
| Boiling point [°C] | 2750 |
| Thermal conductivity [W m-1K-1] | 15.8 |
| Heat capacity [J K-1g-1] | 0.568 |
| Discovery | 1876 |
| Brinell hardness [MPa] | 750 |
| Young's modulus [GPa] | 74 |
| Electrical conductivity [S m-1] | 1.8 · 106 |
| Shear modulus [GPa] | 29 |
| 1.st ionization energy [eV] | 6.5614 |
| 2.nd ionization energy [eV] | 12.8 |
| 3.rd ionization energy [eV] | 24.76 |
| Stable isotopes | 1 |
| Unstable isotopes | 14 |