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Second and successive electron affinity of an elementA. is always successive (energy is released)B. is always positive (energy is absorbed)C. can be positive or negativeD. is always zero

Answer» Correct Answer - B
`O_((g))+e^(-) underset(-EA_(1))(rarr)O_((g))^(ɵ) + e^(-) underset(+EA_(2))(rarr) O_((g))^(2-)`
Energy is required to add an eelctron to the negatively charge species due to electron-electron repulsion.


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