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When did J.J. Thomson discover isotopes?

April 26, 2017Chemistry discover isotopes j.j. thomson physical sciences

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When did J.J. Thomson discover isotopes?

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Through his research on positive ions, Sir Joseph James (J.J.) Thomson found that neon gas was a combination of two types of ions. He also proposed these ions could have a different weight, charge, or even both. This lead Thomson to discover the first isotope of the element neon in 1912.References:”General Chemistry”; Ralph Petrucci; 2006.Manchester Science: J.J.