🔬 Discovery

Radium

Radio (Ra, Z=88)

Date
1898 · confidence high
Place
Paris, France (École de Physique et Chimie)
Credited to
Marie and Pierre Curie (with Gustave Bémont)
People
👤 Marie Curie1867–1934👤 Pierre Curie1859–1906
Field
Matter & energy

What was discovered

The Curies identified it in December 1898 in pitchblende by its intense radioactivity; Marie isolated the metal in 1910 after processing tonnes of ore.

Two Nobel Prizes for Marie Curie (1903 and 1911) linked to this work.

What it led to

  • Cancer radiotherapy (curietherapy)
  • Luminous paints and the 'Radium Girls' scandal
  • Alpha-particle sources for Rutherford's nuclear physics

Built on

  • Discovery of polonium
  • Joachimsthal pitchblende

Made possible

  • Brachytherapy
  • Alpha source for Rutherford's experiment

Links