Single Choice

Order of electron affinity of F,Cl,Br and I is...

AFBr>I
Correct Answer
BF>Cl>Br>I
CF
DF>Cl
I

Solution

Down the group electron affinity decreases due to increase in atomic radii. Here is an exception fluorine has low electron affinity than chlorine. This is because due to smaller size of fluorine and electrons are more closely bound together so that incoming electron feels repulsion so additional energy is required to hold the incoming electron. That's why fluorine has smaller electron affinity.

SIMILAR QUESTIONS

p - block Elements

Which has a lowest electron affinity among the following?

p - block Elements

Which is the correct arrangement of the compounds based on their bond strength?

p - block Elements

The property of halogens which is not correctly matched is:

p - block Elements

Match the column I with column II and mark the appropriate choice. Column I Column II (A) $$H_{2}SO_{4}$$ (i) Highest electron gain enthalpy (B) $$CCl_{3}NO_{2}$$ (ii)Chalcogen (C) $$Cl_{2}$$ (iii) Tear gas (D) Sulphur (iv) Storage batteries

p - block Elements

Explain the following : Halogens have a high electron affinity.

p - block Elements

Arrange the elements of group $$ 17 $$ and group $$ 1 $$ according to the given conditions. Increasing electron affinity

p - block Elements

Which of the elements has the maximum electron affinity

p - block Elements

The electron gain enthalpies of halogens in K J $$ mol ^{-1}$$ are as given below F=-332 , Cl=-349 , Br=-324 , I =-295 . The less negative value for F as compared to the of Cl is due to:

p - block Elements

Which of the following arrangements for the three halogens $$Cl, Br$$ and $$I$$ when placed in the order of their increasing electron affinity is correct?

p - block Elements

Which of the elements has the maximum electron affinity

Contact Details