Atomic NumberAtomic Number of Scandium
Atomic Number of Scandium is 21.
Chemical symbol for Scandium is Sc. Number of protons in Scandium is 21. Atomic weight of Scandium is 44.955908 u or g/mol. Melting point of Scandium is 1539 °C and its the boiling point is 2832 °C.
» Boiling Point » Melting Point » Abundant » State at STP » Discovery YearAbout Scandium
Scandium is a rare metal known also as a transition metal. In its pure form, this metal is quite soft and reactive, especially with water and air. It is a carcinogen and quite a toxic element. Its name is derived from a Latin word meaning Scandinavia. Scandium is rather used for research since it is very rare and can be found only is a few rare types of minerals. As a metal, scandium has very low density, so it is used in alloys with other light metals like aluminum in aircraft industry, etc. Combined with mercury and iodine, scandium is used for producing bulbs.
Properties of Scandium Element
| Atomic Number (Z) | 21 |
|---|---|
| Atomic Symbol | Sc |
| Group | 3 |
| Period | 4 |
| Atomic Weight | 44.955908 u |
| Density | 2.989 g/cm3 |
| Melting Point (K) | 1814 K |
| Melting Point (℃) | 1539 °C |
| Boiling Point (K) | 3109 K |
| Boiling Point (℃) | 2832 °C |
| Heat Capacity | 0.568 J/g · K |
| Abundance | 22 mg/kg |
| State at STP | Solid |
| Occurrence | Primordial |
| Description | Transition metal |
| Electronegativity (Pauling) χ | 1.36 |
| Ionization Energy (eV) | 6.5615 |
| Atomic Radius | 160pm |
| Covalent Radius | 144pm |
| Valence Electrons | 2 |
| Year of Discovery | 1879 |
| Discoverer | Nilson |