网站首页  词典首页

请输入您要查询的词汇：

　

词汇 radioactinium
释义

Definition of radioactinium in English:

radioactinium

noun
historical

  • An isotope of thorium (thorium-227) which is produced by beta decay of actinium and itself decays by alpha emission with a half-life of 18.7 days.

Origin

Early 20th century.

Definition of radioactinium in US English:

radioactinium

noun
historical

  • An isotope of thorium (thorium-227) which is produced by beta decay of actinium and itself decays by alpha emission with a half-life of 18.7 days.

Origin

Early 20th century.
随便看

　

春雷网英语在线翻译词典收录了464360条英语词汇在线翻译词条，基本涵盖了全部常用英语词汇的中英文双语翻译及用法，是英语学习的有利工具。

　

Copyright © 2000-2024 Sndmkt.com All Rights Reserved 更新时间：2024/12/27 23:29:58