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.

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

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 formed from lithium ions (Li⁺) and sulfide ions (S²⁻), and the atoms are indeed held together by ionic bonds. The other statements are incorrect because:

• Only lithium forms positive ions (Li⁺); sulfur typically forms negative ions (S²⁻).
• A molecular model of lithium sulfide would not have "two spheres" as it consists of two lithium ions and one sulfur ion, not just two spheres.
• The correct chemical formula for lithium sulfide is Li2S, not LiS2.

So, the most accurate statement is about the bonds holding the atoms together.