Anybody Please solve

Anybody Please solve 24 The egecttonsc configuration havtng maximum second O) 38 (4) If 2sZ 3s'

Dear Student,
The correct option is (4).
Consider the configuration of the options after the loss of one electron.
(1) 1s22s22p63s1
(2) 1s22s22p63s2
(3) 1s22s22p63s23p1
(4) 1s22s22p6
The difference between IE1 and IE2 will be maximum for the case where their is fully filled orbital. In this case, option (4) has attend the noble gas configuration after the loss of an electron. Hence option (4) has maximum difference between IEand IE2

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