Home » or a given principal level n = 4, the energy of its subshells is in the order Atomic Structure MCQs or a given principal level n = 4, the energy of its subshells is in the order January 8, 2022 38 Views Q. or a given principal level n = 4, the energy of its subshells is in the orderA. s B. s > p > d > fC. s D. f Answer: s