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General Physics

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

Profile image of Madhukar Anand
12 Years agoGrade
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1 Answer

Profile image of Apoorva Arora
12 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.
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Apoorva Arora
IIT Roorkee
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