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Arrange the following in the order of incering electron affinilyB;o n;c
Write their cconfigurations simply first:B = > 1s2 2s2 2p1O => 1s2 Ā 2s2 2p4N => 1s2 2s2 2p3C => 1s2 2s2 2p2Ā Now every elemnt would try to complete its octet or woul be half filled to attain the maximum stability.Hence,Here Carbon seems to attain half filled orbitals and thus to be high stable it would have largest electron affinity.andNitrogen would have least E.A as it is already half filled and stable.
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