63 Eu 151.964
Europium
lanthanide
Properties
- Atomic number
- 63
- Atomic mass
- 151.964 u
- Category
- lanthanide
- Group
- f-block
- Period
- 6
- Block
- f-block
- State (room temp)
- Solid
- Outer-shell electrons
- 2
- Electronegativity
- 1.2 (Pauling)
- Density
- 5.264 g/cm³
- Melting point
- 825.85 °C
- Boiling point
- 1528.85 °C
Electron configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f⁷
Noble-gas shorthand: [Xe] 4f⁷ 6s²
Electrons per shell: 2, 8, 18, 25, 8, 2 — that's 2 in the outermost shell.
About Europium
Europium is a chemical element with symbol Eu and atomic number 63. It was isolated in 1901 and is named after the continent of Europe. It is a moderately hard, silvery metal which readily oxidizes in air and water.
- Discovered by Eugène-Anatole Demarçay
Position in the periodic table
Data compiled from Wikipedia, PubChem, and IUPAC. Source.