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.

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.

jfraser · Answer

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