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16 июл 1856 г. - He discovered electrons and Thomson is also credited with finding the first evidence for isotopes of a stable ( non-radioactive) element in 1913

Описание:

J . J . Thomson

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Jamiyah Polite & Anyliah Middleton

13 окт 2017

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16 июл 1856 г.

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~ 169 г назад

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