Question

6. An ion formed from a single atom has 18 electrons and a charge of +1. In water, this compound dissociates into ions. Write the chemical symbol for this ion.

Answer 1

you know the number of electrons, and you also know the total \(charge\), which tells you the \(difference\) between the number of protons and the number of electrons. Figure out how many protons there are will tell you the identity of the ion