ナトリウムの同位体
1. Isotopes of sodiumThere are twenty recognized isotopes of sodium ranging from Na to Na and two isomers (Na and Na). Na is the only stable (and the only primordial) isotope. As such, it is considered a monoisotopic element and it has a standard atomic mass: 22.98976928(2) u. Sodium has two radioactive cosmogenic isotopes (Na, half-life = 2.605 years; and Na, half-life ≈ 15 hours). With the exception of those two, all other isotopes have half-lives under a minute, most under a second.
Read “Isotopes of sodium” on English Wikipedia
Read “ナトリウムの同位体” on Japanese Wikipedia
Read “Isotopes of sodium” on DBpedia
Read “Isotopes of sodium” on English Wikipedia
Read “ナトリウムの同位体” on Japanese Wikipedia
Read “Isotopes of sodium” on DBpedia
Discussions
Log in to talk about this word.