超锕元素,是指元素周期表中锕系之后(即104号及之后)的元素。它们都是人造元素,放射性元素,很不稳定。它们的半衰期非常短,并且随原子序数的增加不断缩短,从104号Rf的10分钟到118号Uuo的0.9毫秒。它们的合成非常困难,必须用大型的原子对撞机对撞好几年,至今也只合成了几百个原子,性质也只能靠理论分析和猜测。
自不稳定核之间存在着锕系元素,包括钍和稳定核像灌了铅,铋,爆炸性事件,如超需出示锕。
Since the unstable nuclei exist between actinides, including thorium and stable nuclei like lead and bismuth, explosive events such as supernovae are required to produce actinides.
锘在锕类元素中的一种放射性超铀元素,人工微量制造,其最长寿命的同位素是锘255,其。
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.
应用推荐