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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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8 abr 1919 año - Francis William Aston (1919): Uses atomic spectrograph to identify 212 isotopes
Añadido al timeline:
Atomic Timeline
By
MILLER GRIMSLEY
17 sep 2018
0
0
405
fecha:
8 abr 1919 año
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~ 106 years ago
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