Answer:
a) The subshell would be 5g .
b) Yes L can be bigger than 3 in case of n=5.
Step-by-step explanation:
a) The given principle quantum number n=5 signifies the 5th orbit. Also, the given Azimuthal quantum number l=4 represents the g subshell. Thus, the subshell in which the electrons with the given set of principle and azimuthal quantum number are found is 5g.
b) As n=5 and the general rule is l=n-1. So L can be equal to 1,2,3 or 4.