48 Cd 112.414
Cadmium
transition metal
Properties
- Atomic number
- 48
- Atomic mass
- 112.414 u
- Category
- transition metal
- Group
- 12
- Period
- 5
- Block
- d-block
- State (room temp)
- Solid
- Outer-shell electrons
- 2
- Electronegativity
- 1.69 (Pauling)
- Density
- 8.65 g/cm³
- Melting point
- 321.07 °C
- Boiling point
- 766.85 °C
Electron configuration
1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶ 5s² 4d¹⁰
Noble-gas shorthand: [Kr] 4d¹⁰ 5s²
Electrons per shell: 2, 8, 18, 18, 2 — that's 2 in the outermost shell.
About Cadmium
Cadmium is a chemical element with symbol Cd and atomic number 48. This soft, bluish-white metal is chemically similar to the two other stable metals in group 12, zinc and mercury. Like zinc, it prefers oxidation state +2 in most of its compounds and like mercury it shows a low melting point compared to transition metals.
- Discovered by Karl Samuel Leberecht Hermann
- Named by Isotopes of cadmium
- Appearance: silvery bluish-gray metallic
Position in the periodic table
Data compiled from Wikipedia, PubChem, and IUPAC. Source.