* Lead (Pb) can form multiple cations with different charges. In this case, it has a +4 charge (Pb⁴⁺).
* Chlorine (Cl) has a -1 charge (Cl⁻).
* To balance the charges, we need four chloride ions (4 x -1 = -4) to match the +4 charge of the lead ion.
Therefore, the correct name uses Roman numerals to indicate the oxidation state of lead: lead(IV) chloride.
