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Grade 12Inorganic Chemistry

Why is s orbital the outermost for d block elements??
According to aufbau principle, only after 4s, 3d comes right?

Profile image of Ritz
9 Years agoGrade 12
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1 Answer

Profile image of Vikas TU
9 Years ago
Yes,
From Aufbau’s principle after 4s 3d comes and hence the 4s orbitals are filled  first and then after 3d orbitals are filled. And remember Cr and Cu are exception for this as in Cr only one elctron is filled first as 4s1 and then 3d orbital.