Decide whether each pair of elements in the table below will form an ionic compound. If they will, write the empirical formula and name of the compound formed in the spaces provided.

\begin{tabular}{|c|c|c|c|c|} \hline element #1 & element 2 & Formsioniccompound? & empiricalformulaofioniccompound & name of ionic compound \\ \hline oxygen & sodium & 0 yes 0 no & & \\ \hline strontium & oxygen & 0 yes 0 no & & \\ \hline strontium & chlorine & 0 yes 0 no & & \\ \hline barium & sodium & 0 yes 0 no & & \\ \hline \end{tabular}