# Will the formation of a dative bond change the oxidation number?

1. Jul 17, 2013

### coconut62

Consider NH3, if it forms a dative bond with an H+ to form an ammonium ion, will the oxidation number of N change from +3 to +5? My reasoning is that it uses 5 electrons in bonding.

Is that correct?

2. Jul 17, 2013

### janhaa

3. Jul 17, 2013

### janhaa

furthermore

$$NH_3$$

$$NH_4^+$$