In a molecule of mmum sumae, there are two atoms of lithium and one atom of sulfur. Which statement about lithium sulfide is correct? (1 point)

Question

Both lithium and sulfur form positive ions.
A molecular model of lithium sulfide would have two spheres.
The atoms in lithium sulfide are held together by bonds.
The chemical formula for lithium sulfide is LiSz.

Answer 1

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

Here's a brief explanation of why the other statements are incorrect:

• Both lithium and sulfur form positive ions: This is incorrect. Lithium (Li) does form a positive ion (Li⁺), but sulfur (S) forms a negative ion (S²⁻).

• A molecular model of lithium sulfide would have two spheres: This is misleading because lithium sulfide is an ionic compound, not a molecular compound, and would not be represented simply by two spheres.

• The chemical formula for lithium sulfide is LiSz: This is incorrect. The correct chemical formula for lithium sulfide is Li₂S, which indicates that there are two lithium ions for every one sulfide ion.