Maximum number of electrons that can be accommodated in shell with n = 4 are:

Step-by-step solution

The maximum number of electrons that could be present in a shell is given by the rule 2n 2 . Where n is the shell number. The first shell K shell can accommodate a maximum of 2 electrons ( 2   ×   1 2   =   2 ). The second shell L shell can accommodate a maximum of 8 electrons ( 2   ×   2 2   =   8 ). Likewise, the 4th shell named N can accommodate a maximum of 32 electrons ( 2   ×   4 2   =   2   ×   16   =   32 ).