Cadmium (Cd) — Element 48: Properties & Data | Aladdin Scientific
Cadmium(Cd) — Element 48
Cadmium (Cd) is a transition metal with atomic number 48 and atomic mass 112.41. It has melting point 594.22 K (321 °C), boiling point 1040 K (767 °C), density 8.69 g/cm³. It sits in group 12 and period 5 of the periodic table and was discovered in 1817.
Key facts
| Atomic mass | 112.4100 u |
|---|---|
| Electron configuration | [Kr]5s2 4d10 |
| Oxidation states | +2 |
| Electronegativity (Pauling) | 1.69 |
| Atomic radius (van der Waals) | 158 pm |
| Ionization energy | 8.994 eV |
| Melting point | 594.22 K |
| Boiling point | 1040 K |
| Density | 8.69 g/cm³ |
| Standard state | Solid |
| Year discovered | 1817 |
Frequently asked questions
What is the electron configuration of cadmium?
The ground-state electron configuration of cadmium is [Kr]5s2 4d10.
What group and period is cadmium in?
Cadmium (Cd) is in group 12 and period 5 of the periodic table, classified as a transition metal.
What is the melting point of cadmium?
Cadmium melts at 594.22 K (321 °C).
What is the standard state of cadmium?
Cadmium is a solid at standard temperature and pressure.
Related elements
About this data: property values compiled from IUPAC Standard Atomic Weights (2021), the NIST Atomic Spectra Database, and PubChem. Curated by the Aladdin Scientific technical team. Last reviewed: .