Final answer:
The correct formula for magnesium nitride is Mg₃N₂, which reflects the balance of magnesium and nitrogen ions in the compound. The correct answer is D. Mg₃N₂.
Step-by-step explanation:
The formula for magnesium nitride is Mg₃N₂. Magnesium (Mg) has a +2 charge, and nitrogen (N) has a -3 charge, so to balance the charges, you need three magnesium ions for every two nitrogen ions, hence the chemical formula Mg₃N₂.
The formula for magnesium nitride is d. Mg₃N₂. This is determined by the crisscross method, where the charges of the ions are used to determine the subscripts in the formula. Magnesium has a 2+ charge, and nitride has a 3- charge, so the formula becomes Mg₃N₂
The correct answer is D. Mg₃N₂.