Question

Write the empirical formula of at least four by Ineri iconic compounds that would be formed from the following ions. Mg^2+, Pb^4+, F-, S^2-

Answer 1

First empirical formula: gives the proportions of the elements present in a compound but not the actual numbers or arrangement of atoms.

We need binary ionic compounds.

Binary means two elements and ionic has to be a Nonmetal and a Metal.

ANSWER:

$\begin{gathered} \text{MgF}_2 \\ \text{MgS} \\ \text{PbF}_4 \\ \text{PbS}_2 \end{gathered}$

What I do is to exchange the oxidation state of each ion, i.e. the super index number. I then simplify the numbers.