Antoine Henri Becquerel Now

: 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 (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) antoine henri becquerel

Beyond the initial discovery, Becquerel’s research advanced the field in several ways: : Days later, he developed the plate and

: In 1899, he demonstrated that some radioactive rays (beta particles) could be deflected by magnetic fields, proving they were charged particles rather than waves. The Discovery of Radioactivity (1896) Beyond the initial

: 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

: 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

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