For example, in the formation of an ammonium ion from ammonia and hydrogen the ammonia molecule donates a pair of electrons to the hydrogen ion; the identity of the electrons is lost in the ammonium ion that is formed.
The ammonia molecule donates a pair of electrons to the hydrogen ion. This is in the formation of an ammonium ion from ammonia and hydrogen. This is for example. The identity of the electrons is lost in the ammonium ion. This was for example. This ammonium ion is formed.