Cadmium

 


 

 

Name Cadmium
Symbol Cd
Atomic Number 48
Atomic Mass 112.411 atomic mass units
Number of Protons 48
Number of Neutrons 64
Number of Electrons 48
Melting Point 320.9 C
Boiling Point 765.0 C
Density 8.65 grams per cubic centimeter
Normal Phase Solid
Family Transition Metals
Period 5
Cost $6 per 100 grams

 


 

Origin of Name From the Greek word kadmeia, meaning calamine and
the Latin word cadmia, also meaning calamine
Date and Place of Discovery In 1817 in Germany
Discovered by Friedrich Stromeyer
Common Compounds
Interesting facts
  • It is a naturally occurring minor element.
  • It is one of the metallic components in the earth's crust and oceans.
  • It is present everywhere in our environment and is released into the environment through forest fires and volcanic eruptions.
  • It is a common impurity in zinc which is released during the smelting process of zinc.
  • It is known to produce toxic effects on humans and to cause cancer.
Common Uses
  • Nickel- cadmium batteries
  • Pigments for plastics
  • Low melting alloys
  • Electroplating
  • Solder
  • Control barrier in nuclear fission
  • Television picture tubes
  • Medicine to treat enlarged joints, scrofulous glands, and chilblains
  • Semiconductors
  • Stabilizers in PVC

 

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Cadmium
Chemical Elements
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