Gadolinium (Gd)
Gadolinium
Gadolinium (Gd) is a lanthanide in period 6. Its relative atomic mass is 157.25 and the molar mass of the atom is 157.25 g/mol.
Atomic number 64
Atomic mass 157.25
Molar mass 157.25 g/mol
Category Lanthanide Solid
Properties of gadolinium
| Atomic number | 64 |
|---|---|
| Symbol | Gd |
| Latin name | Gadolinium |
| Relative atomic mass | 157.25 |
| Molar mass | 157.25 g/mol |
| Group, period, block | —, 6, f |
| Category | Lanthanide |
| State at 20 °C | Solid |
| Electron configuration | [Xe] 4f⁷ 5d¹ 6s² |
| Electronegativity (Pauling) | 1.2 |
| Atomic radius | 180 pm |
Electron configuration of gadolinium
Electrons per shell
K2L8M18N25O9P2
Full notation
1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f⁷ 5s² 5p⁶ 5d¹ 6s²
Noble-gas notation
64 protons · 64 electrons[Xe] 4f⁷ 5d¹ 6s²
Formula and compounds of gadolinium
Simple substanceGdgadoliniumMolar mass of Gd: 157.25 g/mol
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Frequently asked questions
The relative atomic mass of gadolinium is 157.25, so the molar mass of the atom is 157.25 g/mol.
Full: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 4f⁷ 5s² 5p⁶ 5d¹ 6s². Noble-gas notation: [Xe] 4f⁷ 5d¹ 6s².