Question

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

Answer 1

Correct Answer - Option 3 : Henri Becquerel

The correct answer is Henri Becquerel.

• Born in Paris to discover radioactivity, Henri Becquerel was awarded the Nobel Prize in Physics in 1903, along with Marie and Pierre Curie.
• Marie Curie was a noted physicist and chemist. Mary discovered radium.
• She is the first scientist to be awarded the Nobel Prize in two branches of science (Physics and Chemistry).
• Wilham Röttgen was the winner of the 1901 Nobel Prize in Physics.
• He was given this award for his discovery of X-rays.
• Roentgen​ discovered the X-ray in the year 1895.
• Uranium (atomic number 92) is the first discovered natural radioactive element.
• Elements above atomic number 82 in the periodic table are called radioactive elements.
• The SI system of radioactivity is a "Bacural" unit.
• Its major units are Curie and Rutherford.