Question

Question 1 (Multiple Choice Worth 2 points)

How many electrons in the same atom can share the quantum number n = 3?

6
8
18
32

Question 2 (Essay Worth 3 points)

Explain why the quantum number set (3, 2, 3, -½) is not possible for an electron in an atom.

Answer 1

Question 3 (Multiple Choice Worth 2 points)

Two electrons are found in the same atom. One has the quantum number set (2, 1, -1, +½), and the other has the quantum number set (2, 1, -1, -½). They share the

same sublevel, but are in different orbitals.
same orbital, but have different spin directions.
same energy level, but are in different sublevels.
same type of sublevel, but are found in different energy levels.

Question 4 (Multiple Choice Worth 2 points)

What is the quantum number set of the ground-state electron that is found in lithium (Li) but not in helium (He)?

(1, 0, 0, +½)
(1, 0, 1, +½)
(2, 0, 0, +½)
(2, 0, 1, +½)

Question 5 (Multiple Choice Worth 2 points)

A d sublevel is represented by the quantum number

m subscript l = 1
m subscript l = 2
l = 1
l = 2

Question 6 (Multiple Choice Worth 2 points)

For the quantum number lower case L = 0, how many possible values are there for the quantum number m subscrip l?

0
1
2
3

Question 7 (Essay Worth 3 points)

Compare two electrons with quantum number sets (4, 2, 1, +½) and (4, 1, 1, +½). Be specific about each in terms of location and properties, based on their four quantum numbers.

Question 8 (Essay Worth 3 points)

Give the quantum number set for one electron in the 3p sublevel of a sulfur (S) atom.

Question 9 (Multiple Choice Worth 2 points)

Which of the following quantum number combinations is not allowed in an atom?

n = 2, l = 1, m subscript l = 0
n = 1, l = 0, m subscript l = 0
n = 4, l = 3, m subscript l = -3
n = 2, l = 3, m subscript l = 2

Question 10 (Multiple Choice Worth 2 points)

How many electrons in an atom can share the quantum numbers n = 3, l = 2?

2
3
6
10

Question 11 (Multiple Choice Worth 2 points)

Which of the following is a possible set of quantum numbers for an electron n, l, m subscript l, m subscript s?

(1, 0, 0, +1)
(2, 2, 1, +one over two )
(4, -3, 0, -one over two )
(3, 2, 1, -one over two )