1.

Which of the followig structure is associated with the biggest jump between the second and the third ionisation energies ?

Answer»

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

ANSWER :C


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