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, which is 2 in the outermost shell.
Related: electron configuration, the Bohr model, valence electrons.
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
Gadolinium: frequently asked questions
- What is Gadolinium?
- Gadolinium (Gd) is the chemical element with atomic number 64. It is a metal: specifically a lanthanide.
- What is the atomic number of Gadolinium?
- Gadolinium's atomic number is 64, which means every Gadolinium atom has 64 protons in its nucleus.
- What is the electron configuration of Gadolinium?
- The electron configuration of Gadolinium is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f7 5d1 (noble-gas shorthand: [Xe] 4f7 5d1 6s2). Its electrons are arranged in shells of 2, 8, 18, 25, 9, 2, with 2 in the outermost shell.
- Is Gadolinium a metal or a nonmetal?
- Gadolinium is a metal: specifically a lanthanide.
- What group and period is Gadolinium in?
- Gadolinium sits in the f-block (the lanthanide row) of period 6 on the periodic table.
- Is Gadolinium a solid, liquid, or gas?
- At room temperature, Gadolinium is a solid.
Position in the periodic table
Data compiled from Wikipedia, PubChem, and IUPAC. Source.