Antoine Henri Becquerel – Tested & Working

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

: Days later, he developed the plate and found a clear, dark image of the crystals—meaning they were emitting "penetrating rays" spontaneously, without any external energy source like the sun. antoine henri becquerel

Antoine Henri Becquerel (1852–1908) was a Nobel Prize-winning French physicist renowned for his discovery of . His work laid the foundational stone for nuclear physics and changed our understanding of the atomic structure. The Discovery of Radioactivity (1896) : He was the first to realize that

Becquerel's most famous achievement was an accidental discovery involving uranium salts. Beyond the initial discovery

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

: 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