हिन्दी में पढ़ेंHome › Elements › Cadmium
Cadmium (Cd)
Atomic number 48 · transition
| Atomic number | 48 |
|---|---|
| Atomic mass | 112.414 u |
| Molar mass | 112.414 g/mol |
| Category | transition |
| Group / period / block | 12 / 5 / d |
| Electron configuration | [Kr] 4d10 5s2 |
| Electrons per shell | 2, 8, 18, 18, 2 |
| Electronegativity (Pauling) | 1.69 |
| Atomic radius | 155.0 pm |
| Density | 8.69 g/cm³ |
| First ionisation energy | 8.9938 eV |
| Melting point | 594.22 K (321.07 °C) |
| Boiling point | 1040.15 K (767.00 °C) |
| Common oxidation states | +2 |
| Abundance in Earth's crust | 0.15 ppm |
Uses
Ni-Cd batteries, pigments
Discovery
1817, Fredrich Stromeyer