How is a sodium ion symbol written?

1 Answer
Jun 15, 2017

Write the symbol first, then add its charge as a superscript, #"Na"^+"#.


Sodium is an alkali metal (group 1) and has only one electron in its valence shell, so sodium ions lose their single valence electron to a nonmetal or negatively charged polyatomic ion. Since it loses 1 electron, it develops a 1+ charge.