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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
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17 янв 1932 г. - Chadwick

Описание:

- That the nucleus contained particles called neutrons, as well as postively charged protons.

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Дата:

17 янв 1932 г.
Сейчас
~ 92 г назад