question archive Select the correct ground-state electron configuration for Ti2+ (a) [Ar]4s2 3d2 (b) [Ar]4s2 3d4 (c) [Ar]4s2 (d) [Ar]3d2 (e) [Ar]4s1 3d1

Select the correct ground-state electron configuration for Ti2+ (a) [Ar]4s2 3d2 (b) [Ar]4s2 3d4 (c) [Ar]4s2 (d) [Ar]3d2 (e) [Ar]4s1 3d1

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Select the correct ground-state electron configuration for Ti2+
(a) [Ar]4s2 3d2
(b) [Ar]4s2 3d4
(c) [Ar]4s2
(d) [Ar]3d2
(e) [Ar]4s1 3d1

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Answer:

Ground state electron configuration of Ti is [Ar]4s2 3d2

For two electron ionisation electron goes from outer most orbital and here the outermost orbital is 4s.

So configuration for Ti2+ is [Ar]3d2 (option d)

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