ラジウムの同位体
1. Isotopes of radiumRadium (Ra) has no stable or nearly stable isotopes, and thus a standard atomic mass cannot be given. The longest lived, and most common, isotope of radium is Ra with a half-life of 1600 years. Ra occurs in the disintegration chain of U (often referred to as the radium series. ) Radium has 35 known isotopes from Ra to Ra, with the newest being Ra.
Read “Isotopes of radium” on English Wikipedia
Read “ラジウムの同位体” on Japanese Wikipedia
Read “Isotopes of radium” on DBpedia
Read “Isotopes of radium” on English Wikipedia
Read “ラジウムの同位体” on Japanese Wikipedia
Read “Isotopes of radium” on DBpedia
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