Answer:
The answer to your question is: 3
Explanation:
Data
Magnetic Quantum number in 5d subshell
Magnetic quantum number d has 5 possible values, these could be:
-2, -1 , 0, 1 , 2
d has 5 possible values because in this number could be located 10 electrons but they are pair up, so, there are only 5 possible values.