What's the difference between ammonium, ammonium ions, the chemical formula of ammonium ion groups What is the chemical formula of ammonium, ammonium ion, ammonium ion group

What's the difference between ammonium, ammonium ions, the chemical formula of ammonium ion groups What is the chemical formula of ammonium, ammonium ion, ammonium ion group

The first two are the same. Ammonium doesn't say ion clusters.

What is the chemical formula of hydroxide ion, nitrate ion, sulfate ion, carbonate ion and ammonium ion respectively. Thank you

Hydroxide ion: OH-
Nitrate ion: NO3-
Sulfate ion: SO4 2-
Carbonate ion: CO3 2-
Ammonium ion: NH4+