Atomic NumberAtomic Number of Erbium
Atomic Number of Erbium is 68.
Chemical symbol for Erbium is Er. Number of protons in Erbium is 68. Atomic weight of Erbium is 167.259 u or g/mol. Melting point of Erbium is 1522 °C and its the boiling point is 2510 °C.
» Boiling Point » Melting Point » Abundant » State at STP » Discovery YearAbout Erbium
Erbium is a chemical element and one of the lanthanides. It is a soft metal of light grey color and it can be obtained from various minerals like bastnaesites, and others. Erbium was discovered by a Swedish scientist and named after a town in Sweden. It is quite reactive for a metal, but not toxic and has no essence for living organisms. This chemical element is mainly used in alloys with such metals as iron, vanadium, and others. The main fields of the applications of erbium include glass fiber production, welding, producing sunglasses, jewelry, etc.
Properties of Erbium Element
| Atomic Number (Z) | 68 |
|---|---|
| Atomic Symbol | Er |
| Group | |
| Period | 6 |
| Atomic Weight | 167.259 u |
| Density | 9.066 g/cm3 |
| Melting Point (K) | 1802 K |
| Melting Point (℃) | 1522 °C |
| Boiling Point (K) | 3141 K |
| Boiling Point (℃) | 2510 °C |
| Heat Capacity | 0.168 J/g · K |
| Abundance | 3.5 mg/kg |
| State at STP | Solid |
| Occurrence | Primordial |
| Description | Lanthanide |
| Electronegativity (Pauling) χ | 1.24 |
| Ionization Energy (eV) | 6.1077 |
| Atomic Radius | 175pm |
| Covalent Radius | no datapm |
| Valence Electrons | 2 |
| Year of Discovery | 1842 |
| Discoverer | Mosander |