Antoine Henri Becquerel [ 4K 2026 ]

: In 1901, after being accidentally burned by a vial of radium in his pocket, he realized that radioactivity could affect living tissue. This led to the birth of radiotherapy for treating cancer. Awards and Legacy Henri Becquerel – Facts - NobelPrize.org

: In 1899, he demonstrated that some radioactive rays (beta particles) could be deflected by magnetic fields, proving they were charged particles rather than waves.

: Inspired by the discovery of X-rays, Becquerel wanted to see if phosphorescent materials emitted X-rays after being exposed to sunlight. antoine henri becquerel

: This proved that radiation was an inherent property of certain atoms, a phenomenon later named "radioactivity" by his doctoral student, Marie Curie . Key Scientific Contributions

: On a cloudy day in Paris, he placed uranium crystals on a photographic plate wrapped in black paper and tucked them in a dark drawer. : In 1901, after being accidentally burned by

Beyond the initial discovery, Becquerel’s research advanced the field in several ways:

Becquerel's most famous achievement was an accidental discovery involving uranium salts. : Inspired by the discovery of X-rays, Becquerel

: He was the first to realize that beta particles were identical to the high-speed electrons recently discovered by J.J. Thomson.