Question

how does the periodic table help in predicting the formula of a stable ionic compound?
metals in group 1 form cations with a -1 charge.
metals in group 2 form cations with a +2 charge.
metals in group 1 form anions with a +1 charge.
metals in group 2 form anions with a -2 charge.

Explanation:

B correctly describes ionic charge behavior from the periodic table, which is key to predicting stable ionic compound formulas by balancing cation/anion charges.

Answer:

B correctly describes ionic charge behavior from the periodic table, which is key to predicting stable ionic compound formulas by balancing cation/anion charges.