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4S orbital is filled earlier than a 3d orbital.explain with examples with the help Slater's rule

4S orbital is filled earlier than a 3d orbital.explain with examples with the help Slater's rule

Grade:12th pass

1 Answers

Arun
25750 Points
5 years ago
We say that the 4s orbitals have a lower energy than the 3d, and so the 4s orbitals are filled first. We know that the 4s electrons are lost first during ionisation. The electrons lost first will come from the highest energy level, furthest from the influence of the nucleus.

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