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 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.

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

A molecular model of lithium sulfide would have two spheres.

1 answer

The correct statement about lithium sulfide is:

The atoms in lithium sulfide are held together by bonds.

Here's some clarification on why the other options are incorrect:

  1. The chemical formula for lithium sulfide is Li2S, not LiS2.
  2. The statement "Both lithium and sulfur form positive ions" is incorrect. Lithium forms positive ions (Li⁺) while sulfur forms negative ions (S²⁻).
  3. A molecular model of lithium sulfide would actually have three spheres (two representing lithium atoms and one representing the sulfur atom), not just two.