Answer
Groups 1 and 2 on the periodic table have fixed charges of +1 and +2, respectively. The charges for these ions do no change from compound to compound. In addition to these groups, silver always has +1 charge, zinc has +2 and aluminum has +3.
Work Step by Step
Groups 1 and 2 on the periodic table have fixed charges of +1 and +2, respectively. The charges for these ions do no change from compound to compound. In addition to these groups, silver always has +1 charge, zinc has +2 and aluminum has +3.