Which reaction below represents the electron affinity of Li?
A) Li(g) + e⁻ → Li⁻(g)
B) Li(g) → Li⁺(g) + e⁻
C) Li(g) + e⁻ → Li⁺(g)
D) Li⁺(g) → Li(g) + e⁻
E) Li⁺(g) + e⁻ → Li(g)

Question

Quizplus · Accepted Answer

Electron affinity refers to the energy change when an electron is added to a neutral atom in the gas phase to form a negative ion. Choice A correctly represents this process for lithium (Li), where an electron is added to a gaseous lithium atom to form a lithium ion with a negative charge (Li⁻(g)).

Which Reaction Below Represents the Electron Affinity of Li