From Which Mineral is Radium Obtained?

  1. Rutile
  2. Haematite
  3. Limestone
  4. Pitchblende
Monis Rasool Professor Asked on 11th June 2015 in Chemistry.
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    Answer: (4) Pitchblende
    Radium obtained from Pitchblende Mineral. It was discovered by the Pierre Curie Marie in 1898. It is the heaviest known as alkaline earth metal.
    About Radium-

    RE: From Which Mineral is Radium Obtained?


    Symbol                 Ra
    Atomic number 88
    Atomic weight   226
    Boiling point       1737oC
    Density                 5.5 g/cm3
    It is used in production of tooth paste, hair creams and even food items due to its supposed curative powers.

    Anurag Mishra Professor Answered on 14th June 2015.
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