Here's how it breaks down:

* Pb: This represents the chemical symbol for lead.

* (NO₃): This represents the nitrate ion (NO₃⁻).

* ₂: This subscript indicates that there are two nitrate ions in the molecule.

So, the complete formula is Pb(NO₃)₂, which shows that lead nitrate is composed of one lead ion (Pb²⁺) and two nitrate ions (NO₃⁻).