Question

Which of the following statement is correct

a. There are 7 principal electron energy levels.
b.The second principal energy level has 4 sub-energy levels and contain a max. Of 8 electrons.
c.The principal energy level N can have a max. Of 32 electrons.
D. The 4s sub-energy level has high energy than 3d

Answer 1

D, a is true in natural elements, there may be more levels occuring, but the elements are not known to now exist. However, the wave function eigenvectors both in position space, and in momentum space. This is probably well beyond your course thinking, so mark a) true for now, and ignore the infinite solutions to the weve function.