In 1896, French physicist Henri Becquerel accidentally discovered spontaneous radiation. He was studying uranium salts to see if sunlight would trigger them to emit rays like X-rays. His experiment involved placing the salts on a photographic plate wrapped in black paper and exposing them to sunlight. When cloudy weather forced him to pause, he stored the materials in a dark drawer. Later, upon developing the plate, he found a clear image of the uranium crystals, showing that they emitted powerf

#OnThisDay in 1852, Nobel Laureate Henri Becquerel was born! This French physicist was the first person to discover the phenomenon of radioactivity. He was awarded the Nobel Prize in Physics together with Marie and Pierre Curie in 1903. For his incredible influence on this field, a unit of measurement was named after him: the becquerel. Do you know how a becquerel is defined? a. 10 grams of radioactive material b. The activity of an amount of radioactive material in which one nucleus decays ever