Jisho

×
同位体
Wikipedia definition
1. Isotopes of aluminiumAluminium (Al) has 22 known isotopes from Al to Al and 4 known isomers. Only Al and Al occur naturally, however Al has a natural abundance of 99.9+ %. Other than Al, all radioisotopes have half-lives under 7 minutes, most under a second. Standard atomic mass is 26.9815386(8) u. Al is produced from argon in the atmosphere by spallation caused by cosmic-ray protons.
Read “Isotopes of aluminium” on English Wikipedia
Read “アルミニウムの同位体” on Japanese Wikipedia
Read “Isotopes of aluminium” on DBpedia

Discussions

to talk about this word.