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AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
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23 ноя 1913 г. - He demonstrated major chemical and physical properties are not determined by atomic weight , but by atomic number. Protons determine the atom's identity

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30 ноя 2018

Дата:

23 ноя 1913 г.
Сейчас
~ 110 г назад