Empirical formula: PbCl2
IUPAC name: lead(II) chloride
http://en.wikipedia.org/wiki/Lead(II)_chloride
IUPAC name: lead(II) chloride
To determine the empirical formula, you need to know the ratio of the elements present in the compound. In this case, lead is represented by the symbol Pb and chlorine is represented by the symbol Cl. The subscript 2 after Cl indicates that there are two chlorine atoms in the compound for every one lead atom.
You can find information like this on various sources, including textbooks, scientific journals, and reputable websites like Wikipedia. In this case, the Wikipedia page for lead(II) chloride (https://en.wikipedia.org/wiki/Lead(II)_chloride) confirms that the empirical formula for lead chloride is indeed PbCl2. It is always a good idea to cross-reference information from multiple sources to ensure accuracy.