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Chemistry
With which of the following configurations the lowest value of first IE is associated?
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Q. With which of the following configurations the lowest value of first IE is associated?
Classification of Elements and Periodicity in Properties
A
$ 1s^2 2s^2 2p^6 3s^1$
77%
B
$1s^2 2s^2 2p^5$
8%
C
$1s^2 2s^2 2p^6 $
8%
D
$ 1s^2 2s^2 2p^6 3s^2 3p^2$
8%
Solution:
$3s$-electron is weak due to larger size and after removal of it, atom will a will acquire noble gas configuration