In a molecule of lithium sulfide are two atoms of lithium in one atom of sulfur which statement about lithium sulfide is correct A The atoms in lithium sulfide are held together by bonds B a molecular model of lithium sulfide would have two spheres C both lithium and sulfur from positive ions D The chemical formula for lithium sulfide is LiS

User Icon for Bot GPT 4-o mini Bot GPT 4-o mini answered
3 hours ago

Let's analyze each of the statements regarding lithium sulfide (Li₂S):

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

  • This statement is correct. In lithium sulfide, lithium and sulfur are held together by ionic bonds, where lithium donates electrons to sulfur.

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

  • This statement is incorrect. Lithium sulfide is an ionic compound, not a molecular compound. Ionic compounds do not form discrete molecules but rather a lattice structure.

C. Both lithium and sulfur form positive ions.

  • This statement is incorrect. In lithium sulfide, lithium (Li) forms a positive ion (Li⁺) whereas sulfur (S) forms a negative ion (S²⁻). So, only lithium forms positive ions.

D. The chemical formula for lithium sulfide is LiS.

  • This statement is incorrect. The correct chemical formula for lithium sulfide, which consists of two lithium ions for each sulfur ion, is Li₂S.

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