Multiple choice

From which mineral is radium obtained?

  1. Limestone

  2. Haematitie

  3. Pitchblende

  4. Rutile
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Radium was first isolated from pitchblende (also called uraninite) by Marie and Pierre Curie in 1898. Pitchblende is a uranium-rich ore that contains trace amounts of radium along with other radioactive elements. The Curies processed tons of pitchblende to extract small amounts of radium.

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