In NH3 the oxidation state of Nitrogen is -3.
It has 3 extra electrons in three polar covalent bonds, 'donated' from three bonded hydrogen atoms.
Hydrogen has an oxidation state of +1 in this compound.
Nitrogen is in the 3- oxidation state in calcium nitride.
nitroxide
Because nitrogen forms a compound with hydrogen called anhydrous ammonia consisting of one nitrogen atom and three hydrogen atoms. Since hydrogen has an oxidation number of one, nitrogen must have an oxidation number of three to make a "neutral" molecule.
-3
Nitrosyl [NO+] has Nitrogen in +3 oxidation state and Oxygen in -2
Nitrogen is in the 3- oxidation state in calcium nitride.
+5 oxidation state
-3
nitroxide
Because nitrogen forms a compound with hydrogen called anhydrous ammonia consisting of one nitrogen atom and three hydrogen atoms. Since hydrogen has an oxidation number of one, nitrogen must have an oxidation number of three to make a "neutral" molecule.
Oxidation state of nitrogen.
There are no nitrogen atoms in CaCO3!
-3
It would be zero.
-3
Nitrosyl [NO+] has Nitrogen in +3 oxidation state and Oxygen in -2
NO2 is a acidic gas. Nitrogen shows +4 oxidation number.