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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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30 dic 1912 año - Niels Borhr's - Electron moves in a circular orbit at fixed distances from the nucleus.
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Chemistry timeline
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Krysten Thompson
8 nov 2017
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fecha:
30 dic 1912 año
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~ 112 years ago
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