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The top documents tagged [radioactivity gamma]
Lecture 1 Dr: Sahar Mousa. Electrons and nuclei The Familiar Planetary Model of the atom was proposed by Rutherford in 1912 All the mass of an atom
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Radioactivity. History Discovered (accidentally) ByHenri Becquerel “He carries thus his uranium salts under the sun, places them close to photographic
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