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# Which of the following configuration is expected to have max different in second and third ionization energy :

$(a)\;(1S)^2(2S)^2(2P)^2 \\(b)\;(1S)^2(2S)^2(2P)^6 \\ (c)\;(1S)^2(2S)^2(2P)^6(3S)^2 \\ (d)\;(1S)^2(2S)^2(2P)^1$
Can you answer this question?

$(1S)^2(2S)^2(2P)^6(3S)^2$ is correct
Hence c is the correct answer.
answered Mar 11, 2014 by