Aqueous Solution:An aqueous solution refers to any solution where water serves as the solvent. When lead(II) nitrate dissolves in water, it forms an aqueous solution containing Pb2+ cations and NO3- anions.
Nitrate: A nitrate is a polyatomic ion composed of one nitrogen atom (N) and three oxygen atoms (O). The nitrate ion, NO3-, is negatively charged due to the presence of three additional electrons. In lead(II) nitrate, there are two nitrate ions bonded to one lead(II) cation.
Cation:A cation is a positively charged ion that forms when an atom or molecule loses electrons. Lead(II) nitrate contains Pb2+ cations, which have lost two electrons.