Question

An ion contains 13 protons, 14 neutrons and 11 electrons. What element is this, and what is the charge on the ion?

Answer 1

Only protons and electrons are considered in the ion charge.
This is an aluminum ion with a +2 charge, `Al^(2+)`

Explanation:

The 13 protons assure us it is aluminum. The difference in protons (13) and electrons (11), tell us that there is an imbalance of 2 positive charges.

By the way, this is not a stable ion for aluminum! (should be +3, with only 10 electrons).