Question

in which of the following dement has highest value of ionisation energy-
(1)v
(2) Nb
(3) Ta
(4) Cs​

Answer 1

Answer:

Ne)3s

2

3p

3

is stable configuration because the outer sub-shell is half-filled. Half filled configurations are stable configurations.

The one half-filled and one completely filled orbital gives stability. Hence, It will be difficult to remove an electron from it and will take more energy.

Hence, [Ne]3s

2

3p

3

has the highest ionization energy among the given elements.

Hence, the correct option is C

Explanation Hope it helped u

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