What are the nitrogen oxidation numbers in #(i)# #"ammonia"#, and #(ii)# in #"ammonium cation"#?
The oxidation number of nitrogen in ammonia,
Oxidation number is formally defined by the charge left on the metal centre (or the central atom), when all the bonding pairs of electrons are conceptually broken; with the charge, the electrons, assigned to the MOST electronegative atom.
If we gots
.......where the nitrogen atoms have CLEARLY undergone
And in ammonium ion, the oxidation state of the nitrogen is necessarily the same. The sum of the oxidation numbers,