In a molecule of lithium sulfide, there are two atoms of lithium and one atom of

Question

sulfur. Which statement about lithium sulfide is correct? ( 1 point)
The chemical formula for lithium sulfide is LiS . 2
The atoms in lithium sulfide are held together by bonds.
A molecular model of lithium sulfide would have two spheres.
Both lithium and sulfur form positive ions.

Answer 1

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

Here’s a brief explanation for why the other options are incorrect:

1. The chemical formula for lithium sulfide is Li₂S, not LiS. It consists of two lithium (Li) atoms and one sulfur (S) atom.

2. A molecular model of lithium sulfide would actually have three spheres – two representing lithium atoms and one representing the sulfur atom.

3. In lithium sulfide, lithium (Li) forms positive ions (Li⁺), while sulfur (S) typically forms negative ions (S²⁻). So, sulfur does not form a positive ion in this context.