1.

Amongst the following elements, the highest ionization energy is

Answer»

`[NE]3s^(2)3p^(1)`
`[Ne]3s^(2)3p^(3)`
`[Ne]3s^(2)3p^(2)`
`[Ar]3d^(10)4s^(2)4p^(3)`

Answer :B


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