Atomic NumberAtomic Number of Samarium
Atomic Number of Samarium is 62.
Chemical symbol for Samarium is Sm. Number of protons in Samarium is 62. Atomic weight of Samarium is 150.36 u or g/mol. Melting point of Samarium is 1072 °C and its the boiling point is 1778 °C.
» Boiling Point » Melting Point » Abundant » State at STP » Discovery YearAbout Samarium
This chemical element is a light grey color metal extracted from a mineral named samarskite which, in turn, was named after a Soviet military official, Colonel Samarski. It is one of lanthanide metals which can be extracted from a number of minerals like monazites. This chemical element can also be produced artificially in labs. It is not toxic and has no biological importance. Samarium is often used in alloys with other metals like cobalt and iron to produce high power magnets used in electronic devices like headphones, etc. Samarium oxides have application in producing ceramics and glass.
Properties of Samarium Element
| Atomic Number (Z) | 62 |
|---|---|
| Atomic Symbol | Sm |
| Group | |
| Period | 6 |
| Atomic Weight | 150.36 u |
| Density | 7.52 g/cm3 |
| Melting Point (K) | 1345 K |
| Melting Point (℃) | 1072 °C |
| Boiling Point (K) | 2067 K |
| Boiling Point (℃) | 1778 °C |
| Heat Capacity | 0.197 J/g · K |
| Abundance | 7.05 mg/kg |
| State at STP | Solid |
| Occurrence | Primordial |
| Description | Lanthanide |
| Electronegativity (Pauling) χ | 1.17 |
| Ionization Energy (eV) | 5.6436 |
| Atomic Radius | 185pm |
| Covalent Radius | no datapm |
| Valence Electrons | 2 |
| Year of Discovery | 1879 |
| Discoverer | Lecoq de Boisbaudran |