How do you use the periodic table to recall the ionic charge of an alkalic metal an alkaline earth metal or aluminum?

To recall the ionic charges of alkali metals, alkaline earth metals, and aluminum using the Periodic Table, note their group locations. Alkali metals (Group 1) typically have a +1 charge, alkaline earth metals (Group 2) have a +2 charge, and aluminum (found in Group 13) usually carries a +3 charge. These charges correspond to the number of electrons lost when these elements form cations. By remembering their group numbers, you can easily determine their common ionic charges.