Electronic configurations of four elements A , B , C , D are given below A) 1 ~s ^2 2 ~s ^2 2 p ^6 3 ~s ^1 B) 1 s^2 2 s^2 2 p^6 3 s^2 3 p^1 C) 1 s^2 2 s^2 2 p^6 3 s^2 D) 1 s^2 2 s^2 2 p^6 3 s^2 3 p^2 The correct order of first ionization en

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Electronic configurations of four elements A , B , C , D are given below A) 1 ~s ^2 2 ~s ^2 2 p ^6 3 ~s ^1 B) 1 s^2 2 s^2 2 p^6 3 s^2 3 p^1 C) 1 s^2 2 s^2 2 p^6 3 s^2 D) 1 s^2 2 s^2 2 p^6 3 s^2 3 p^2 The correct order of first ionization enthalpy of these elements is

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Correct answer: D. D > C > B > A

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Electronic configurations of four elements A , B , C , D are given below A) 1 ~s ^2 2 ~s ^2 2 p ^6 3 ~s ^1 B) 1 s^2 2 s^2 2 p^6 3 s^2 3 p^1 C) 1 s^2 2 s^2 2 p^6 3 s^2 D) 1 s^2 2 s^2 2 p^6 3 s^2 3 p^2 The correct order of first ionization enthalpy of these elements is

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