ルビジウムの同位体
1. Isotopes of rubidiumRubidium (Rb) has 32 isotopes, with naturally occurring rubidium being composed of just two isotopes; Rb (72.2%) and the radioactive Rb (27.8%). Normal mixes of rubidium are radioactive enough to fog photographic film in approximately 30 to 60 days. Standard atomic mass is 85.4678(3) u. Rb has a half-life of 4.92×10 years. It readily substitutes for potassium in minerals, and is therefore fairly widespread.
Read “Isotopes of rubidium” on English Wikipedia
Read “ルビジウムの同位体” on Japanese Wikipedia
Read “Isotopes of rubidium” on DBpedia
Read “Isotopes of rubidium” on English Wikipedia
Read “ルビジウムの同位体” on Japanese Wikipedia
Read “Isotopes of rubidium” on DBpedia
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