1.

The decreasing order of electron affinity of F, Cl, Br is F>Cl>Br

Answer»

False : Order of electron affinity Cl > F > Br because the size of F-atom is lower than that of Cl- atom, so the electron density on the surface of F is higher than that of chlorine. Thus, during the addition of an additional electron. higher repulsion takes place in fluorine than chlorine.

So, more amount of energy is consumed for the accommodation of addition electron in fluorine than chlorine. Hence, not released a large amount of energy.

This energy is higher in chlorine than fluorine ie, electron affinity of F<Cl.

Bromine shows lower electron affinity than F and Cl due to its larger size. 



Discussion

No Comment Found

Related InterviewSolutions