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The ammonium ion, NH4+, is the only polyatomic cation.
Assuming that questioner intended to complete the question with "carbonate, or nitrate" instead of the nonexistent "carbonatenitrate": Carbonate and nitrate ions are both polyatomic; lithium and calcium ions are both monatomic.
Silver is a heavy metal and such elements form only ionic bonds.
A singly charged lithium cation.
A cation is an ion that has lost electrons giving it a positive charge. Ammonium is the cation in ammonium nitrate.
NO3 is a covalently bonded polyatomic ion.
Li(N03) is the formula of lithium nitrate, Li+ ion and NO3- ion are combined in this salt (compound)
The anion with the formula NO3-1 is a covalently bonded polyatomic ion.
The cation,Mg 2+and the polyatomic anions,2NO3 -form the ionic compoundMg(NO3)2===========magnesium nitrate
The ammonium ion, NH4+, is the only polyatomic cation.
Assuming that questioner intended to complete the question with "carbonate, or nitrate" instead of the nonexistent "carbonatenitrate": Carbonate and nitrate ions are both polyatomic; lithium and calcium ions are both monatomic.
Lithium form the cation Li2+.
The cation of lithium is Li+.
Lithium Nitrate
It's an ionic substance. Well it's true that ionic substances are usually composed of a metal + a non-metal (or a polyatomic anion), but ionic substances can also be composed of a polyatomic cation + a non-metal (or a polyatomic anion). anion: negatively charged ion cation: positively charged ion
Silver is a heavy metal and such elements form only ionic bonds.
A singly charged lithium cation.