The correct statement about lithium sulfide is: The atoms in lithium sulfide are held together by bonds.
Lithium sulfide (Li2S) consists of two lithium (Li) atoms and one sulfur (S) atom, and the atoms are bonded together in the compound. The other options contain inaccuracies — for instance, the chemical formula for lithium sulfide is Li2S, not LiS2, and only lithium forms positive ions (Li⁺), while sulfur typically forms negative ions (S²⁻).