The formula for lead(IV) chromate is Pb(CrO4)2.
To understand whether this compound is ionic or covalent, let’s break it down. Lead(IV) chromate consists of lead ions (Pb4+) and chromate ions (CrO42-). The lead (Pb) has a positive charge, while the chromate ion carries a negative charge. In ionic compounds, one atom donates electrons while another accepts them, resulting in oppositely charged ions that attract each other.
In this case, lead loses electrons to achieve a positive charge, and chromate gains electrons, meaning there is a clear transfer of electrons. Therefore, lead(IV) chromate is classified as an ionic compound due to the strong electrostatic forces holding the oppositely charged ions together.