The configuration of the element which shows a sudden jump in its second ionization potential is
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a
1s22s22p63s23p2
b
1s22s22p63s2
c
1s22s22p63s1
d
1s22s22p63s23p5
answer is C.
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Detailed Solution
Sudden jump in 2nd IP(IP2) indicates that the element attains octet configuration after the loss of one electron. Number of valence electrons in the element must be one. It must be a first group element, Ne3s1.