Quantum Numbers Worksheet I Answers

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Worksheet on Quantum Numbers in Schrodinger’s Quantum Mechanical Model of Atoms
1. List all possible sets of quantum numbers for n =3
2. List all possible atomic orbitals with n = 4
3. What are the possible values of (l) if: a.) n=2 b.) n=4
4. What letters correspond with the values of (l) in #3?
5. How do you designate the orbitals when:
a.) n=2, l=0
b.) n=3, l=2
c.) n=3, l=1
6. How many orbitals are there if:
a.) l=2
b.) l=3
7. What letters correspond with the subshells in #6?
8. What is the maximum number of electrons found in the:
a.) 1st principal energy level
b.) 2nd principal energy level
c.) 3rd principal energy level
d.)4th principal energy level
9. How many electrons are there in:
a.) a (s) subshell
b.) a (p) subshell
c.) a (d) subshell
d.) a (f) subshell
10. How many electrons are there in:
a.) a (p) orbital
b.) a (f) orbital
11. How many orbitals are there in:
a.) a (s) subshell
b.) a (p) subshell
c.) a (d) subshell
d.) a (f) subshell
12. For the following pairs of orbitals, indicate which is higher in energy:
a.) 3p or 4p
b.) 4s or 4d
c.) 2s or 3d
d.) 5s or 4f
13. What type of orbital (s, p, d, or f) is designated by:
a.) n=4, l=1, ml=0
b.) n=3, l=2, ml=0
c.) n=2, l=0, ml=0
14. Indicate which of the following sets of quantum numbers could NOT occur and explain why:
a.) 1,1,0,+1/2
b.) 2,1,0,+1/2
c.) 2,0,1,-1/2
d.) 2,1,0,0
e.)3,2,0,-1/2
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