Question

The maximum number of electrons that can be accommodated in any given shell is 2n^2. Why? Can you explain...

Answer 1

Answer:

This number is multiplied by 2, since each electron can be spin up or spin down. Thus the maximum number of electrons that can be in a subshell is 2(2l + 1). For example, the 2s subshell in Example 1 has a maximum of 2 electrons in it, since 2(2l + 1) = 2(0 + 1) = 2 for this subshell.