Numford
Oxidation number

N in NH₄⁺

N is −3 in the ammonium ion.

Oxidation number

Type a formula or an ion: K2Cr2O7, Cr2O7 2-, MnO4-, NH4+ or K4[Fe(CN)6]. Put a known ion in brackets when two elements are unknown. Pick an element to solve for it.

N−3

  1. Hydrogen is +1 when bonded to non-metals.
  2. The oxidation numbers add up to the charge, +1: 4(+1) + x = +1.
  3. x = −3.
Rule steps

How to find it

  1. Hydrogen is +1 when bonded to non-metals.
  2. The oxidation numbers add up to the charge, +1: 4(+1) + x = +1.
  3. x = −3.
Every atom

All the oxidation numbers in NH₄⁺

  • H +14 atoms, hydrogen
  • N −31 atom, sum rule
Questions

N in NH₄⁺: quick answers

What is the oxidation number of N in NH₄⁺?

N in NH₄⁺ (the ammonium ion) is −3.

How do you find the oxidation number of N in NH₄⁺?

Hydrogen is +1 when bonded to non-metals. The oxidation numbers add up to the charge, +1: 4(+1) + x = +1. x = −3.

What are the oxidation numbers of the other atoms in NH₄⁺?

H +1. Together with N at −3 they add up to the charge of the ion, +1.

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