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NEETChemistryStructure of Atom

What is the new pattern followed beginning with scandium (Sc) in the filling of orbitals?

Options

  1. AThe 4p orbital is filled first.
  2. BThe 2s orbital is filled first.
  3. CThe 3d orbital is filled first.
  4. DThe 4s orbital is filled first.

Correct answer

C. The 3d orbital is filled first.

Step-by-step solution

"The 3d orbital, being lower in energy than the 4p orbital, is filled first."

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