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Which one of the following has electronic configuration in violation of Aufbau principle? a) calcium b) titanium c) chromium d) manganese

Which one of the following has electronic configuration in violation of Aufbau
principle?
a) calcium b) titanium c) chromium d) manganese

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1 Answers

Apoorva Arora IIT Roorkee
askIITians Faculty 181 Points
8 years ago
Chromium violates the Aufbau principle asThe order of filling is said to be obtained by starting at the top of the diagram and following the arrows. This process gives the order of filling of orbitals with electrons according to this sequence:
1s > 2s > 2p > 3s > 3p > 4s > 3d > 4p > 5s > 4d
and so on.
but chromium configuration goes like this[Ar] 3d54s1.
Thanks and Regards
Apoorva Arora
IIT Roorkee
askIITians Faculty

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