A) loss of energy
B) gain of energy
C) no change in energy
D) None of the above
Correct Answer: A
Solution :
When a neutral atom accepts electron to form an anion, energy is released. This liberated energy is called electron affinity (or electron gain enthalpy). \[A(s)+{{e}^{-}}\xrightarrow{{}}{{A}^{-}}(aq)+energy\]
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