bn:01874647n
Noun Concept
EL
sm-151  σαμάριο-149
EN
Naturally occurring samarium is composed of five stable isotopes, 144Sm, 149Sm, 150Sm, 152Sm and 154Sm, and two extremely long-lived radioisotopes, 147Sm and 148Sm, with 152Sm being the most abundant. Wikipedia
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