Multiple choice

Which phenomenon was Henri Becquerel originally investigating in uranium when he discovered the new phenomenon of radioactivity?

  1. Electronegativity

  2. Phosphorescence

  3. Catenation

  4. Efflorescence
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In 1896, Henri Becquerel was investigating phosphorescence in uranium salts when he discovered a new phenomenon, which came to be called radioactivity. He along with Pierre and Marie Curie began investigating the phenomenon. In the process, they isolated the element radium, which is highly radioactive.

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