Question

Which of these electronic configuration would be expected
to have highest ionization energy?
(a) 1s². 2s² (b) 1s², 2s¹​

Answer 1

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answer:- a))))

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Answer 2

Answer:

highest ionisation energy take part

because in part a the last sub shell have completely filled i.e they complete their octet rule so in part first electron are not easily remove

so it take more ionisation energy