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Question

The magnitude of electron affinity depends upon :
atomic radius
the nuclear charge
ionization potential
polarising power

A

polarising power

B

the nuclear charge

C

ionization potential

D

atomic radius

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Solution

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The magnitude of electron affinity depends upon the nuclear charge. The halogens, which are one electron short of a completely filled outer subshell have the greatest attraction for an electron.
The greater the attraction for the electron, the more exothermic the process.

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