Cd
Cadmium is a toxic heavy metal formerly used widely in batteries and pigments.
Fisiese eienskappe
| Atomic Mass | 112.41 u |
| Density | 8.69 g/cm³ |
| Smelt punt: | 594.22 K |
| Boiling Point | 1040.0 K |
| Appearance | Silvery bluish-gray metallic |
| Toestand by kamerkomp | Solied |
Chemical Properties
| Electronegativity | 1.69 (TrinidadCity name (optional, probably does not need a translation)) |
| 1st Ionization Energy | 867.8 kJ/mol |
| Electron Affinity | -68.0 kJ/mol |
| Oxidation States | +1, +2 |
Atomic Properties
| Electron Configuration | [Kr] 4d10 5s2 |
| Atomic Radius | 151.0 pm |
| Covalent Radius | 144.0 pm |
| Atomic radius: | 158.0 pm |
Discovery
| Discovered By | Friedrich Stromeyer, Karl Samuel Leberecht Hermann |
| Discovery Year | 1817 |
| Location | Gottingen, Germany |
| Genoemde Na | Latin 'cadmia' or Greek 'kadmeia' meaning calamine |
About Cadmium
Cadmium is a soft, bluish-white metal that is toxic and classified as a carcinogen. It was widely used in NiCd batteries but its use has declined due to environmental concerns.
Gebruiks & Programme
NiCd batteries, pigments, electroplating, nuclear reactor control rods, and solar cells.
Fun Fact
Cadmium pigments remain popular with artists because no other pigments match their brilliance, despite cadmium's toxicity.
Isotopes
| Definieer Molekulêr Gewigte | Abundance | Half-Life | Stabiel |
| 110 | 0.1249% | - | Ja |
| 111 | 0.128% | - | Ja |
| 112 | 0.2413% | - | Ja |
| 114 | 0.2873% | - | Ja |
Electron Configuration
[Kr] 4d10 5s2