カリウムの同位体
1. Isotopes of potassiumPotassium (K) has 25 known isotopes from K to K. Three isotopes occur naturally: stable K (93.3%) and K (6.7%), and the long-lived radioisotope K (0.012%). The standard atomic mass is 39.0983(1) u. Naturally occurring K decays to stable Ar (11.2% of decays) by electron capture or positron emission (giving it the longest known positron-emitter nuclide half-life). Alternately and most of the time (88.8%) it decays to stable Ca by beta decay; K has a half-life of 1.248×10 years.
Read “Isotopes of potassium” on English Wikipedia
Read “カリウムの同位体” on Japanese Wikipedia
Read “Isotopes of potassium” on DBpedia
Read “Isotopes of potassium” on English Wikipedia
Read “カリウムの同位体” on Japanese Wikipedia
Read “Isotopes of potassium” on DBpedia
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