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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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13 фев 1913 г. - bohr
Описание:
electrons outside the nuculeus
Добавлено на ленту времени:
jojo
By
liyg
19 сен 2017
0
0
678
Дата:
13 фев 1913 г.
Сейчас
~ 112 г назад
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