melanietapia37 melanietapia37
  • 26-05-2017
  • Chemistry
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Why do electrons enter the 4s orbital before entering the 3d orbital?

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HELPMEASAP7
HELPMEASAP7 HELPMEASAP7
  • 26-05-2017
because  the 4s orbitals have a lower energy than the 3d, and so the 4s orbitals are filled first.
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