The compound is neutral. The Ammonium ion (NH4+) has a overall charge of +1 The nitrogen atom (-3) Hydrogen atom (+1). The Sulfate ion (SO4 2-) has overall charge of -2. (- 2) for oxygen atom (+6) for sulfur atom Solution The compound is neutral. The Ammonium ion (NH4+) has a overall charge of +1 The nitrogen atom (-3) Hydrogen atom (+1). The Sulfate ion (SO4 2-) has overall charge of -2. (- 2) for oxygen atom (+6) for sulfur atom.