The number of d electrons in Fe is equal to which of the following? i. Total number of ' s ' electrons of Mg ii. Total number of ' p ' electrons of Cl iii. Total number of ' p ' electrons of Ne The correct option is

Step-by-step solution

Electronic configuration of Fe =[ Ar ] 3 ~d ^6 4 ~s ^2 iron have 6 electron in d orbital Electronic configuration Mg : 1 ~s ^2 2 ~s ^2 2 p ^6 3 ~s ^2 Cl :[ Ne ] 3 ~s ^2 3 p ^5 Ne : 1 ~s ^2 2 ~s ^2 2 p ^6 Ne have 6 electron in p orbital which is same as Fe electron in d orbital and Mg have also 6 electron in all 's' orbital. Hence (i) and (iii) are correct.