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31 дек 1912 г. - 1913 - Moseley Used X-ray gun to accurately measure atomic number
Добавлено на ленту времени:
Periodic Table Development
By
Josie Senko
16 окт 2018
0
0
276
Дата:
31 дек 1912 г.
Сейчас
~ 112 г назад
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