Holden N.E. — Chemistry History Of The Origin Of The Chemical Elements And Their Discoverers
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Название: Chemistry History Of The Origin Of The Chemical Elements And Their Discoverers
Автор: Holden N.E.
Аннотация:
What do we mean by a chemical element? A chemical element is matter, all of whose atoms are alike in having the same positive charge on the nucleus and the same number of extra-nuclear electrons.
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