What is the formal charge on the nitrogen in the ammonium ion?

Name: What is the formal charge on the nitrogen in the ammonium ion?
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Quizplus · Accepted Answer

The formal charge on the nitrogen in the ammonium ion (NH4+) is +1. This is calculated by taking the number of valence electrons in the free atom (5 for nitrogen) minus the number of non-bonding electrons (0 for nitrogen in NH4+) minus half the number of bonding electrons (8 in NH4+, so 8/2 = 4), giving 5 - 0 - 4 = +1.

What Is the Formal Charge on the Nitrogen in the Ammonium