Question

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) Responses The atoms in lithium sulfide are held together by bonds. The atoms in lithium sulfide are held together by bonds. 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 . Both lithium and sulfur form positive ions.

Answer 1

The correct statement about lithium sulfide is: The atoms in lithium sulfide are held together by bonds.

In lithium sulfide (Li₂S), lithium (Li) forms positive ions (Li⁺), while sulfur (S) forms a negatively charged ion (S²⁻). The compound is ionic, so the lithium ions and sulfide ions are held together by ionic bonds.

To clarify the other options:

• A molecular model of lithium sulfide would actually have four spheres (two lithium ions and one sulfide ion represented as a single entity with two negative charges).
• The correct chemical formula for lithium sulfide is Li₂S, not LiS₂.
• Only lithium forms positive ions, while sulfur forms a negative ion.

So, the first statement is the most accurate one among the options provided.