From the ground state electronic config...

From the ground state electronic configuration of the elements given below, pick up the one with the highest value of second ionisation energies

`1s^(2), 2s^(2)2p^(6), 3s^(2)`

`1s^(2), 2s^(2)2p^(6), 3s^(1)`

`1s^(2), 2s^(2)2p^(6)`

`1s^(2), 2s^(2)2p^(5)`

Text Solution

Verified by Experts

The correct Answer is:

Electronic configuration of `(b)` corresponds to `Na ( Z = 11)`, so it will have the highest `IE_(2)` among the given configuration. Because the 2nd `e^(-)` has to be removed from the full - filled stable `2p^(6)` configuration.

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From the ground state, electronic configuration of the elements given below, pick up the one with highest value of second ionization energy:

`1s^(2)2s^(2)2p^(6)3s^(2)`

`1s^(2)2s^(2)2p^(6)3s^(1)`

`1s^(2)2s^(2)2p^(6)`

`1s^(2)2s^(2)2p^(5)`

From the ground state, electronic configuration of the elements given below, pick up the one with highest value of second ionization energy :

`1s^(2)2s^(2) 2p^(6)3s^(2)`

`1s^(2) 2s^(2)2p^(6)3s^(1)`

`1s^(2)2s^(2)2p^(6)`

`1s^(2)2s^(2)2p^(5)`

The ground state electronic configuration of CO molecule

`1sigma^2 2sigma^2 1pi^4 3sigma^2`

`1sigma^2 2sigma^2 3sigma^2 1pi^2 2pi^2`

`1sigma^2 2sigma^2 1pi^2 3sigma^2 2pi^2`

`1sigma^2 1pi^4 2sigma^2 3sigma^2`