Periodic Classification and Periodic Properties 2 Question 34
34.
Statement I F-atom has a less negative electron affinity than $\mathrm{Cl}$-atom.
Statement II Additional electrons are repelled more effectively by $3 p$-electrons in $\mathrm{Cl}$-atom than by $2 p$-electrons in F-atom.
(1998, 2M)
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Answer:
Correct Answer: 34. (c)
Solution:
- Statement I is true; Statement II is false. $\mathrm{F}$ atom has slightly lower affinity for the electron than chlorine. It is due to the reason that additional electrons are repelled more effectively by $2 p$-electrons in $\mathrm{F}$ than by $3 p$-electrons in $\mathrm{Cl}$-atom.
