Question

Who among the following discovered Radioactivity?
1. Marie Curie
2. Irene Juliet
3. Henri Becquerel
4. Wilhelm Roentgen

Answer 1

Correct Answer - Option 3 : Henri Becquerel

The correct answer is Henri Becquerel.

Henri Becquerel

•  Radioactivity was discovered by Henri Becquerel in 1896.
• He was a French engineer, physicist, and Noble laureate.
• He received the Nobel Prize for Physics in 1903.
• SI  unit of radioactivity is becquerel (Bq).

 

Marie Curie

• First Individual who received two Nobel Prizes
• She had received the Nobel Prize for Physics in 1903 for the discovery of radioactivity along with Henri becquerel and Pierre Curie.
• 2nd Nobel Prize was for Chemistry and it was in 1911 -For the discovery of Radium and Polonium.

Irene Juliet

• Artificial radioactivity was discovered by Irene Juliet and Fedrik Juliet (1934).
• They were awarded the Nobel prize for chemistry in 1935.

Wilhelm Roentgen

• Discovered X Ray in 1895 and received the Nobel prize (Physics) in 1901.