Radium
Radium, Ra, is a radioactive alkaline earth metallic element
which belong to
Group IIa of
the periodic table.
- Atomic Number : 88
- Relative Atomic Mass : 226
- Melting point : 700 degC
- Boiling point : 1140 degC
- Relative Density : 5
Radium is a serious radiological hazard.
Discovery
Radium was discovered, by
Madame Curie in 1898AD.
Occurrence
Radium occurs in pitchblende and is present in all Uranium ores.
Extraction
Preparation
Manufacture
Properties
Radium is a white shiny metal.
Radiumis reactive and forms the nitride in air.
Reactions
Radium is similar in its properties to Barium.
Uses
Radium is used in medicine in the treatment of cancer.
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