Question

Which combination of elements below will bond ionically and in the same ratio as lithium when it bonds to sulfur?

A) carbon and oxygen
B) sodium and oxygen
C) calcium and nitrogen
D) aluminum and chlorine

Answer 1

B. Sodium and Oxygen

Answer 2

Lithium sulfide (Li2S) would have 2 lithium atoms for every sulfur atom and would form an ionic bond. Sodium oxide (Na2O) has 2 sodium atoms for every oxygen atom (same ratio) and forms an ionic bond.