Cadmium

Atomic number: 48

Symbol: Cd

Category: transition metal

Density at 25°C: solid:  8.65 g·cm−3

Cadmium is most often used in pigments and batteries for example Nickel Cadmium rechargeable ones. Though the use of cadmium is being reduced due to it's toxicity. 

Sample of pure cadmium crystal. image adapted from wikipedia


Use, natural applications or common combinations: 

  • Batteries
  • Pigments, but potentially hazardous.
  • Laboratory lasers


Basic characteristics:

  • Standard atomic weight: 112.411(8)
  • Melting point: 321.07 °C
  • Boiling point: 767 °C
  • Radioactivity: most stable but one is radioactive
  • 113Cd is naturally (12.2% ) radioactive but with a very long half life of 7.7×1015 y