Question
In a molecule of lithium sulfide, there are two atoms of lithium and onjavascript:void(0)e atom of sulfur. Which statement about lithium sulfide is correct?(1 point)
Responses
A molecular model of lithium sulfide would have two spheres.
A molecular model of lithium sulfide would have two spheres.
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
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The chemical formula for lithium sulfide is cap l i cap s sub 2
Both lithium and sulfur form positive ions.
Responses
A molecular model of lithium sulfide would have two spheres.
A molecular model of lithium sulfide would have two spheres.
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
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𝑖
𝑆
2
The chemical formula for lithium sulfide is cap l i cap s sub 2
Both lithium and sulfur form positive ions.
Answers
GPT-4o mini
The correct statement about lithium sulfide (Li2S) is:
**The atoms in lithium sulfide are held together by bonds.**
Here's a brief explanation of the other options:
- The statement "A molecular model of lithium sulfide would have two spheres" is misleading since lithium sulfide is an ionic compound, not a molecular compound. In ionic compounds, the structure is often more complex than just discrete "molecules."
- The chemical formula for lithium sulfide is **Li2S**, not LiS2. The correct formula indicates there are two lithium ions for every one sulfide ion.
- Lithium forms a positive ion (Li⁺), but sulfur typically forms a negative ion (S²⁻), not another positive ion.
Therefore, the statement about bonds is the only accurate representation of lithium sulfide.
**The atoms in lithium sulfide are held together by bonds.**
Here's a brief explanation of the other options:
- The statement "A molecular model of lithium sulfide would have two spheres" is misleading since lithium sulfide is an ionic compound, not a molecular compound. In ionic compounds, the structure is often more complex than just discrete "molecules."
- The chemical formula for lithium sulfide is **Li2S**, not LiS2. The correct formula indicates there are two lithium ions for every one sulfide ion.
- Lithium forms a positive ion (Li⁺), but sulfur typically forms a negative ion (S²⁻), not another positive ion.
Therefore, the statement about bonds is the only accurate representation of lithium sulfide.