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We’re being asked to give the molecular formula of potassium nitride. The rules for naming binary ionic compounds are as follows:
1. The metal keeps its name and written first.
– For transition metals, we use Roman numerals to denote its charge.
2. The nonmetal keeps its base name but has its ending change to –ide.
– For polyatomic ions, attach the name of the anion as is to the metal
How to write the formula for potassium nitride?