NEET · Chemistry · STD 11 - 3. Classification of elements and periodicity in properties
Which one of the elements has the maximum electron affinity
- A \(Cl\)
- B \(F\)
- C \(Br\)
- D \(I\)
Answer & Solution
Correct Answer
(A) \(Cl\)
Step-by-step Solution
Detailed explanation
Electron affinity is the energy released when an electron is added to a neutral atom in the gaseous state. Among halogens, electron affinity is generally high due to the tendency to gain one electron. However, fluorine has a very small atomic size, so strong electron–electron repulsion in its compact 2p orbital reduces its electron affinity slightly.
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