n.锿(放射性化学元素)

Einsteinium is a synthetic element with the atomic number 99 and the symbol Es.
铹是一种人工合成的元素，原子序数为99，符号为Es。
The isotopes of einsteinium have been used in nuclear research and as alpha sources.
铹的同位素已被用于核研究和作为阿尔法粒子源。
Einsteinium was discovered as a result of the first nuclear bomb test in 1945.
铹是在1945年第一次核爆炸试验中被发现的。
The longest-lived isotope of einsteinium, Es-252, has a half-life of about 471.7 days.
铹中最稳定的同位素是Es-252，其半衰期约为471.7天。
It's extremely difficult to produce einsteinium due to its high atomic number and radioactive nature.
由于铼具有高原子序数和放射性性质，所以极其难以生产。
In scientific research, einsteinium has shown potential for use in cancer treatment through targeted alpha therapy.
在科学研究中，铼显示出在靶向α疗法治疗癌症方面的潜力。
Einsteinium fluoride (EsF3) is one of the few compounds of einsteinium that have been prepared and studied.
铹氟化物（EsF3）是已制备并研究过的铼的少数化合物之一。
The production of einsteinium requires irradiation of uranium or plutonium in a nuclear reactor.
制备铼需要在核反应堆中对铀或钚进行辐照。
Trace amounts of einsteinium can be found in spent nuclear fuel from reactors.
核反应堆产生的废弃核燃料中含有微量的铼。
The chemistry of einsteinium is similar to that of other actinides, such as fermium and mendelevium.
铹的化学性质与其它锕系元素如费米ium和钔相似。