In a molecule of lithium sulfide, there are two atoms of lithium and one atom of sulfur. Which statement about lithium sulfide is correct?(1 point)

Question

Responses

Both lithium and sulfur form positive ions.
Both lithium and sulfur form positive ions.

A molecular model of lithium sulfide would have two spheres.
A molecular model of lithium sulfide would have two spheres.

The chemical formula for lithium sulfide is LiS2.
The chemical formula for lithium sulfide is LiS 2 .

The atoms in lithium sulfide are held together by bonds.
The atoms in lithium sulfide are held together by bonds.

Answer 1

The correct statement about lithium sulfide is:

The atoms in lithium sulfide are held together by bonds.

Lithium sulfide (Li2S) is an ionic compound composed of lithium ions (Li⁺) and sulfide ions (S²⁻), and these ions are held together by ionic bonds. The other statements are incorrect:

• Lithium forms positive ions, but sulfur typically forms negative ions (sulfide, S²⁻).
• The correct chemical formula for lithium sulfide is Li2S, not LiS2.
• A molecular model would represent the different ions, but there would be more than just two spheres due to the presence of multiple ions of each type.

Thus, the most appropriate answer is the one regarding bonds.