Which of the following is the proper name for Pb(NO3)2?

The compound Pb(NO3)2 is named Lead(II) nitrate because of the oxidation state of the lead ion in the compound. Lead can exist in multiple oxidation states, primarily +2 and +4. In this particular compound, the nitrate ion (NO3^-) has a charge of -1, and since there are two nitrate ions in the formula, the total negative charge is -2. To balance this charge, lead must have a +2 oxidation state, leading to the designation of Lead(II).

The term "nitrate" refers to the nitrate ion, which is a polyatomic ion composed of one nitrogen atom and three oxygen atoms. The presence of two of these ions contributes to the overall composition of the compound as a nitrate.

Other options refer to different compounds or incorrectly denote the oxidation state of lead. Lead(III) nitrate would imply a +3 oxidation state for lead, which does not match the charges in the formula provided. Similarly, Lead(II) sulfate and Lead(IV) phosphate reference different anions (sulfate and phosphate) not present in Pb(NO3)2, leading to misidentification of the compound. Thus, the naming follows the correct oxidation state of the lead ion and the correct