Quantum Numbers Worksheet
1. State possible numbers for the four types of quantum numbers.
Principal quantum number(n)
…………………………………
Orbital quantum number(l)
………………………………….
Magnetic quantum number(ml)
………………………………….
Spin quantum number(ms)
………………………………….
2. What will be the orbital for the following values of orbital quantumnumber, l.
l=0
……………………………….
l=1
………………………………
l=2
……………………………….
l=3
………………………………
3. Name the orbitals described by the following quantum numbers
a. n=1
l=0
……………………….
b. n=2,
l=1
……………………….
c. n=3
l=2
……………………….
d. n=5
l=0
……………………….
4. Give n and l values for the following orbitals
a. 2p
n=…………………. l=………………..
b. 5f
n=…………………. l=………………..
c.3d
n=…………………. l=………………..
d.4d
n=…………………. l=………………..
e.4s
n=…………………. l=………………..
4. Indicate the maximum number of electrons in an atom that can have as part of their set of
quantum numbers for each of the following.
a. n=3, l=2
…………………….
b. n=4 , l=3
…………………….
c. n=3, l=2
…………………….
d. n=6, l=0
…………………….
5. Write the 11 sets of quantum numbers that describe the 11 electrons of sodium, Na.
1st electron
n=…… l=…… ml=…..
ms=…..
2nd electron
n=…… l=…… ml=…..
ms=…..
3rd electron
n=…… l=…… ml=…..
ms=…..
4th electron
n=…… l=…… ml=…..
ms=…..
5th electron
n=…… l=…… ml=…..
ms=…..
6th electron
n=…… l=…… ml=…..
ms=…..
7th electron
n=…… l=…… ml=…..
ms=…..
8th electron
n=…… l=…… ml=…..
ms=…..
9th electron
n=…… l=…… ml=…..
ms=…..
10th electron
n=…… l=…… ml=…..
ms=…..
11th electron
n=…… l=…… ml=…..
ms=…..
Did any of the above two electrons have set of quantum number?
Yes/ No
6. Write the quantum numbers associated with each of the following.
a. 2nd electron in the s- orbital of the 4th energy level
b. 3rd electron in the 5f sublevel
c. any one sublevel in 3d orbital
d. the first electron added to the 4f sublevel
7 . Indicate whether the following sets of quantum numbers are acceptable or not.
a. n=3, l=2,ml=0,ms=+1/2
……………………………
b. n=2, l=-2, ml=-1,ms=-1/2
……………………………
c. n=6, l=2 , ml=-2,ms=+1/2
……………………………
9. Write the values for the quantum numbers for the bold electron in the following diagrams.
a)
n=…… l=…… ml=…..
ms=…..
b)
n=…… l=…… ml=…..
ms=…..
c).
n=…… l=…… ml=…..
ms=…..
d)
n=…… l=…… ml=…..
ms=…..