Antoine Henry Becquerel

Antoine Henry Becquerel (1852 — 1908), popularly known as A H Becquerel, was a French physicist, who devised the SI unit of radioactivity named after him. He is also known for discovering the natural radioactivity in uranium salts with Marie Curie and Pierre Curie. The Curies and Becquerel were jointly awarded Nobel Prize for Physics in 1903.