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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 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. The chemical formula for lithium sulfide is LiS2. The chemical formula for lithium sulfide is LiS 2 . A molecular model of lithium sulfide would have two spheres.

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The correct statement about lithium sulfide is:

The atoms in lithium sulfide are held together by bonds.

Lithium sulfide (Li2S) consists of lithium ions (Li⁺) and sulfide ions (S²⁻) that are held together by ionic bonds. The other statements are incorrect:

  • Lithium forms positive ions, but sulfur forms negative ions (S²⁻), not positive ions.
  • The correct chemical formula for lithium sulfide is Li₂S, not LiS₂.
  • A molecular model of lithium sulfide would actually have three spheres (two for lithium and one for sulfur), not just two.