Natural radioactivity was discovered by
- AMarie Curie
- BErnest Rutherford
- CHenri Becquerel
- DEnrico Fermi
Solution & Step-by-step Explanation
Natural radioactivity was discovered by French physicist Henri Becquerel in 1896 while investigating phosphorescent properties of uranium salts. Marie Curie along with Pierre Curie further investigated the properties and discovered newer elements.