If an atom gains an electron, what charge will it become as an ion?

1 Answer
Jun 11, 2017

An electron has a negative charge,so adding one to an atom creates a negatively charged ion or negative ion.


Some negative ions with one atom that you encounter every day are:

Fluoride,formed from a fluorine atom and found in toothpaste

Chloride, formed from chlorine and found in ordinary table salt

Iodide, formed from iodine and also present in small amounts in table salt (iodized salt)