1.

A sudden large difference between the values of second and third ionization energies to elements would be associated with which of the following electronic configuration

Answer»

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

Solution :It is evident that release of 2 electron from the isolated gaseous element shown in option (b) WOULD give RISE to highly stable cor EOF Ne. Hence, massive energy is required to remove the `3^(rd)` electron.


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