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The electronic configuration for some ne...

The electronic configuration for some neutral atoms are given below.
A: `1s^(2) 2s^(2)`, B: `1s^(2) 2s^(2)2p^(3)`
C: `1s^(2) 2s^(2)2p^(4)`, D: `1s^(2) 2s^(2)2p^(6) 3s^(1)`
In which of this electronic configuration would you expect to have highest (a) `IE_(1)` and (b) `IE_(2)`.

Text Solution

Verified by Experts

a. `B:` Because of exactly half-filled `2p` subshell its `IE_(1)` will be more than `A` and `C`.
b. `D:` Because after the removal of one electron, `D` will acquire a configuration of a noble gas and thus its `IE_(2)` will be the highest.
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