Atomic NumberAtomic Number of Lutetium
Atomic Number of Lutetium is 71.
Chemical symbol for Lutetium is Lu. Number of protons in Lutetium is 71. Atomic weight of Lutetium is 174.9668 u or g/mol. Melting point of Lutetium is 1656 °C and its the boiling point is 3315 °C.
» Boiling Point » Melting Point » Abundant » State at STP » Discovery YearAbout Lutetium
Lutetium is a chemical element discovered in the early 20th century in France and the US at approximately same time. It has got the name after the Latin word for Paris. It is a dense and shiny metal, with almost no toxicity and no importance for living organisms on our planet. It is one of the lantanides which can be found and extracted from minerals like monazites. The extraction process for lutetium is quite hard. This element is mainly used for research and its industrial applications are limited by playing a role of catalyst.
Properties of Lutetium Element
| Atomic Number (Z) | 71 |
|---|---|
| Atomic Symbol | Lu |
| Group | |
| Period | 6 |
| Atomic Weight | 174.9668 u |
| Density | 9.84 g/cm3 |
| Melting Point (K) | 1925 K |
| Melting Point (℃) | 1656 °C |
| Boiling Point (K) | 3675 K |
| Boiling Point (℃) | 3315 °C |
| Heat Capacity | 0.154 J/g · K |
| Abundance | 0.8 mg/kg |
| State at STP | Solid |
| Occurrence | Primordial |
| Description | Lanthanide |
| Electronegativity (Pauling) χ | 1.27 |
| Ionization Energy (eV) | 5.4259 |
| Atomic Radius | 175pm |
| Covalent Radius | 160pm |
| Valence Electrons | 2 |
| Year of Discovery | 1907 |
| Discoverer | Urbain |