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jan 1, 1913 - Isotopes Discovered

Description:

Kasimir Fajans (1887-1975) and Soddy (1877-1956) discovered that to atoms can be the same element with different numbers of neutrons. Fajans called the chemically identical atoms with differing isotopic masses pleiads, but Soddy called them Isotopes

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History of isotopes

ByJack
6 Nov 2019
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Date:

jan 1, 1913
Now
~ 113 years ago
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