《英文msh词典》Yttrium Isotopes
[主题词] Yttrium Isotopes
[入口词] Isotopes,Yttrium
[中文释义] 钇同位素
[英文释义] Stable yttrium atoms that have the same atomic number as the element yttrium,but differ in atomic weight. Y-89 is the only naturally occurring stable isotope of yttrium.