The angular momentum quantum number of an electron in a d orbital is equal to?
February 20th, 2023
##l=2##
The angular momentum quantum number, ##l##, is used to denote the subshell in which a given electron resides in an atom.
The value of the angular momentum quantum number depends on the value of the principal quantum number, ##n##, as given by
##l = {0, 1, 2, …, n-1}##
Now, in order for an electron to be located in a ##d## orbital, it must be located in the ##d## subshell. The angular momentum quantum number designates
##l = 0 ->## the s subshell
##l=1 ->## the p subshell
##l=2 ->## the d subshell
##l=3 ->## the f subshell
In your case, all the electrons located in a ##d## orbital will share the same value of the angular momentum quantum number, i.e. ##l=2##.