What is an ion? What determines whether an ion is a cation or an anion?
Ion- an atom or molecule that is electrically charged because it has a diffrent number of electrons than protons.
if it has more electrons than protons, the ion has an excess of negative charge; it is thus negatively charged and its an (Anion). If the ion has fewer electrons than protons, there is an excess of positive charge; a positively charged ion is called a (Cation).