Symbol | Sc | Atomic radius: pm | 161 | Fusion: kJ/Mole | 14.10 |
Name | Scandium | Ionic radius: pm | (+3)75 | Boiling point: °C | 2836 |
Atomic number | 21 | Electron affinity | 0.19 | Melting point: °C | 1541 |
Atomic weight | 44.96 | 1st ion potential | 6.56 | Specific Heat Cap: J/(g K) | 0.57 |
Classification | Trans metal | Natural form | Solid | Thermal Cond: W/(cm K) | 0.16 |
Configuration | [Ar]3d14s2 | Crystal structure | Hex | Electrical Cond | 0.0177 |
Oxidation states | 3 | Density | 2.99 | Abundance: mg/kg-crust | 22 |
Electronegativity | 1.36 | Vaporization: kJ/Mole | 305.0 | ||
Dimitri Mendeleev predicted the existence of scandium in 1871 as ekaboron. Lars Fredrik Nolson discovered its oxide, scandia, in 1879, and Per Teodor Cleve identified scandium in 1879 with the hypothetical ekaboron. | Uses - component of alloys used to make metallic baseball bats, isotope tracing in crude oil analysis |