Why is this wrong? *give me Reasons other than that 4s Comes before 3d

1.	Why is this wrong? give me Reasons other than that 4s Comes before 3d
Answer» According to law. the orbital who is have the LOWER VALUE of (n+l) the ELECTRON first full them. as 3d have (3+2)=5 4s have (4+0)=4 that is why 4S COMES before the 3d.

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