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5 Jul 1913 Jahr - 1913- Niels Bohr

Beschreibung:

PLANETARY MODEL

Niels proposed a model where the atom was a small and positively charged nucleus surrounded by electrons. He discovered that electrons travel in separate groups and found that the number of electrons in an outer shell can determine the type of element.

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History of Atomic Model

ByCindy Vo
10 Feb 2020
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Datum:

5 Jul 1913 Jahr
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~ 112 years ago
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