Multiple choice

Who invented radio-activity of uranium?

  1. Harvey

  2. Ramsay, Travers

  3. Charles

  4. Henry Becquerel
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Henri Becquerel discovered radioactivity in uranium in 1896 when he noticed that uranium salts could fog photographic plates even in darkness. This discovery of spontaneous radioactivity earned him the 1903 Nobel Prize in Physics, shared with the Curies. Harvey studied blood circulation, and Ramsay discovered noble gases.

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