For the energy levels in an ato which one of the following statements

1.	For the energy levels in an ato which one of the following statements is/are correct?
Answer» There are seven principal electron ENERGY LEVELS. The second principal energy level can have 4 subnergy levels and CONTAIN a maximum of 8 electrons. The M energy level can have a maximum of 32 electrons. The 4s subenergy level is at a LOWER energy than the 3D subenergy level. Answer :A::D

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