1.

Thehighestelectronaffinityis shownby

Answer»

`O^(-)`
`F^(-)`
`C1_(2)`
`F_(2)`

SOLUTION :The MOLECULESOF `F_(2) ,C1_(2)`and theanion `F^(-)` , all havestablenoble gasconfiguration. Thereforetheir`Delta_(EG)H_(1) ` isalmostzero.However , `O^(-)` has oneelectronless thanthe noblegas configurationtherefore`O^(-)`has thehighest`Delta_(eg) H_(1)`.


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