Henri Becquerel's Atomic Theory Henri Becquerel was born into a science family Becquerel did close work with potassium uranyl sulfate, which he exposed to sunlight and placed on photographic plates wrapped in black paper When it was developed, the plates revealed an image of uranium crystals Later experiments;When Henri Becquerel investigated the newly discovered Xrays in 16, it led to studies of how uranium salts are affected by light By accident, he discovered that uranium salts spontaneously emit a penetrating radiation that can be registered on a photographic plateHenri Becquerel made an important contribution to our understanding of atomic theory when he discovered the existence of radioactivity In this lesson, learn about him and his amazing discovery
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