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InterviewSolution
| 1. |
Why electron are filled up in 4s orbital before 3d orbital |
| Answer» Hello bisvanath can u tell me ur real name because this is so large and teeepical<br>Because if you take any element whose electron also move in 4th shell then you first write 1s to 4s.<br>Hello ,Do you understand my answer ? Please tell me . I am waiting for ur answer biswanath<br>Because electrons are filled by serial wise like maths counting 1,2,3.......100 so electronic configuration is starts from 1s,2s,2p,3s,3p,3d,3f ,4s ,4p and so on | |