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 answer

In a molecule of lithium sulfide (Li₂S), there are indeed two lithium (Li) atoms for every one sulfur (S) atom. Here are some correct statements about lithium sulfide:

  1. Chemical Formula: The chemical formula Li₂S indicates that the compound consists of two lithium ions (Li⁺) and one sulfide ion (S²⁻).

  2. Ionic Compound: Lithium sulfide is an ionic compound formed from the transfer of electrons from lithium to sulfur, resulting in the formation of Li⁺ and S²⁻ ions.

  3. Properties: Lithium sulfide is a solid at room temperature, has a high melting point, and is typically soluble in water.

  4. Formation of Ionic Bonds: The bonding in lithium sulfide involves strong electrostatic forces between the positively charged lithium ions and the negatively charged sulfide ions.

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