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

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.

Answer 1

The correct statement about lithium sulfide is:

The atoms in lithium sulfide are held together by bonds.

To clarify the other statements:

1. The chemical formula for lithium sulfide is LiS2. - This is incorrect; the correct formula is Li2S, as there are two lithium (Li) atoms and one sulfur (S) atom.

2. Both lithium and sulfur form positive ions. - This is incorrect; lithium forms a positive ion (Li⁺), but sulfur typically forms a negative ion (S²⁻).

3. A molecular model of lithium sulfide would have two spheres. - This is misleading; while the model could have two lithium atoms represented as spheres, it would also need to include the sulfur atom, making the model represent three atoms in total.

Therefore, the correct statement is about the bonding between the atoms.