## Chemistry: Principles and Practice (3rd Edition)

a) 4 b) 5 c) 2 d) n=3, l=1, Possible values of $m_{l}$= -1, 0 or +1
a) The number of subshells= the value of n= 4 b) Because the subshell is d, l=2. The possible values of the magnetic quantum number are -2,-1,0,1 or 2 (from -l to +l). Total number of orbitals= Number of possible values of $m_{l}$ =5 c) Maximum value of l= n-1= 3-1= 2 d) n=3, l= azimuthal quantum number corresponding to the p subshell= 1. Allowed values of $m_{l}$ ranges between the interval -l and +l. Therefore $m_{l}$= -1, 0 or +1.