Cadmium (Cd)
Cadmium
Cadmium (Cd) is a transition metal in period 5, group 12. Its relative atomic mass is 112.41 and the molar mass of the atom is 112.41 g/mol.
Atomic number 48
Atomic mass 112.41
Molar mass 112.41 g/mol
Category Transition metal Solid
Properties of cadmium
| Atomic number | 48 |
|---|---|
| Symbol | Cd |
| Latin name | Cadmium |
| Relative atomic mass | 112.41 |
| Molar mass | 112.41 g/mol |
| Group, period, block | 12, 5, d |
| Category | Transition metal |
| State at 20 °C | Solid |
| Electron configuration | [Kr] 4d¹⁰ 5s² |
| Electronegativity (Pauling) | 1.69 |
| Atomic radius | 155 pm |
Electron configuration of cadmium
Electrons per shell
K2L8M18N18O2
Full notation
1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s²
Noble-gas notation
48 protons · 48 electrons[Kr] 4d¹⁰ 5s²
Formula and compounds of cadmium
Simple substanceCdcadmiumMolar mass of Cd: 112.41 g/mol
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Frequently asked questions
The relative atomic mass of cadmium is 112.41, so the molar mass of the atom is 112.41 g/mol.
Full: 1s² 2s² 2p⁶ 3s² 3p⁶ 3d¹⁰ 4s² 4p⁶ 4d¹⁰ 5s². Noble-gas notation: [Kr] 4d¹⁰ 5s².