64 Gd 157.253
Gadolinium
lanthanide
Properties
- Atomic number
- 64
- Atomic mass
- 157.253 u
- Category
- lanthanide
- Group
- f-block
- Period
- 6
- Block
- f-block
- State (room temp)
- Solid
- Outer-shell electrons
- 2
- Electronegativity
- 1.2 (Pauling)
- Density
- 7.9 g/cm³
- Melting point
- 1311.85 °C
- Boiling point
- 2999.85 °C
Electron configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰ 5p⁶ 6s² 4f⁷ 5d¹
Noble-gas shorthand: [Xe] 4f⁷ 5d¹ 6s²
Electrons per shell: 2, 8, 18, 25, 9, 2 — that's 2 in the outermost shell.
About Gadolinium
Gadolinium is a chemical element with symbol Gd and atomic number 64. It is a silvery-white, malleable and ductile rare-earth metal. It is found in nature only in combined (salt) form.
- Discovered by Jean Charles Galissard de Marignac
- Appearance: silvery white
Position in the periodic table
Data compiled from Wikipedia, PubChem, and IUPAC. Source.