[化学]锕系

锕系，锕系元素

actinium series───锕系

activity series───活度顺序

lanthanide series───镧系元素

acetylene series───乙炔系列

active services───现役

alkane series───烷烃系

alkene series───烯烃系

alkyne series───炔烃系

condenseries───n.炼乳工厂

A radioactive transuranic element in the actinide series, artificially produced in trace amounts. Its longest-lived isotope is No255 with a half-life of3 minutes. Atomic number102.