1 ene 1913 año - Isotopes Discovered
Descripción:
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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1 ene 1913 año
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~ 111 years ago