Font size
WorksheetsValence Electrons and Quantum Numbers
Total questions: 90
Worksheet time: 3hrs 46mins
What is the maximum number of orbitals that can exist in the 6th energy level (n=6)?
9
16
26
36
What is the maximum number of electrons that can occupy the 4th energy level (n=4)?
18
32
8
2
Any given orbital may hold a maximum of __ electrons
2
8
18
32
An element in the 3rd row of the periodic table has three valence electrons. It has one unpaired electron in its highest occupied sublevel
Identify the element.
How many electrons can the second energy level (n=2) hold?
2
8
18
32
How many valence electrons does nitrogen Have?
1 Valence electrons
2 Valence electrons
3 Valence electrons
4 Valence electrons
5 Valence electrons
How many valence electrons does aluminum have?
1 Valence electron
2 Valence electron
3 Valence electron
4 Valence electron
5 Valence electron
How many valence electrons are present in a neutral ground state atom of potassium?
1 valence electron
2 valence electrons
3 valence electrons
4 valence electrons
5 valence electrons
Elements in the same column of the periodic table always have the same # of _______ as one another.
protons
neutrons
occupied energy levels
valence electrons
How many valence electrons are found in elements of group 14?
How many valence electrons are found in an atom of He?
(a)
This could be the Lewis dot diagram of
P
Ar
Na
B
Which elements have the most similar chemical properties?
boron and carbon
oxygen and sulfur
aluminum and bromine
argon and silicon
This is a correct Lewis dot diagram for fluorine (F)
true
false
The elements in this group all have 5 valance electrons.
Group 5
Group 15
Group 3
Group 18
How many valence electrons are present in an atom of Na?
(a)
How many valance electrons does iodine have?
6
16
7
17
The outermost electrons in an atom are referred to as ___.
valence electrons
inner electrons
emission electrons
excited electrons
core electrons
This could be the Lewis dot diagram of
Mg
Cl
C
O
This is a correct Lewis dot diagram for neon (Ne)
true
false
How many valence electrons are present in an atom of B?
(a)
This could be the Lewis dot diagram of
Ne
Si
Al
Be
If n = 1, what are the allowed values of ℓ? Select all that apply:
0
1
2
3
If n = 2, what are the allowed values of ℓ? Select all that apply:
0
1
2
3
If n = 3, what are the allowed values of ℓ? Select all that apply:
0
1
2
3
For ℓ = 0, select the possible values of m:
-2
-1
0
1
2
For ℓ = 1, select the possible values of m:
-2
-1
0
1
2
For ℓ = 2, select the possible values of m:
-2
-1
0
1
2
What are the possible values of s?
-1
-1/2
0
1/2
1
What is the correct representation for an orbital which has an "n" value of 4 and an "ℓ" value of 2?
4d
4s
4f
4p
If n=4 and ℓ=3, what orbital is represented?
4f
4d
3s
3p
The principle quantum number, n, represents the:
spin value
suborbital value
energy level
magnetic value
The proper pair of the angular momentum quantum number ℓ value with the orbital shape.
0; f
3; p
1; s
2; d
Match the value of ℓ with the appropriate type of orbital
ℓ = 0
s
ℓ = 1
p
ℓ = 2
d
ℓ = 3
f
The angular momentum quantum number ℓ determines:
orbital color
electron spin
orbital shape
energy level
Which of the following is an orbital that cannot exist?
2p
2d
4p
4f
Which of the following is an orbital that cannot exist?
1p
2s
3p
5f
Which of the following represents an allowed set of quantum numbers?
n = 2, ℓ = 2, m = -1, s = -1/2
n = 1, ℓ = 0, m = 0, s = +1/2
n = 3, ℓ = 3, m = 3, s = -1/2
n = 5, ℓ = 4, m = -5, s = +1/2
n = 3, ℓ = 4, m = 2, s = -1/2
Which of the following is an allowed set of quantum numbers?
Check all that apply
n = 5, ℓ = 1, m = -1, s = +1/2
n = 2, ℓ = 1, m = -3, s = -1/2
n = 2, ℓ = 2, m = 0, s = +1/2
n = 2, ℓ = 0,
m = -2, s = -1/2
n = 4, ℓ = 3, m = -3, s = -1/2
Identify the correct set(s) of quantum numbers from the options below.
Select all that apply.
n = 3, ℓ = 2, m = -2, s = +1/2
n = 1, ℓ = 0, m = 0, s = -1/2
n = 6, ℓ = 5, m = -6, s = +1/2
n = 3, ℓ = 1, m = 1, s = -1/2
n = 5, ℓ = 2, m = 3, s = +1/2
ℓ = 0
ℓ = 1
ℓ = 2
ℓ = 3
Which of the following is an allowed set of quantum numbers?
Check all that apply
n = 2, ℓ = 3,
m = -1, s = +1/2
n = 2, ℓ = 1,
m = 0, s = -1/2
n = 5, ℓ = 3,
m = 1, s = +1/2
n = 7, ℓ = 0,
m = -1, s = -1/2
n = 8, ℓ = 6, m = -3, s = -1/2
Which of the following is an allowed set of quantum numbers?
Check all that apply
n = 1, ℓ = 3,
m = -1, s = +1/2
n = 4, ℓ = 2,
m = 1, s = -1/2
n = 3, ℓ = 3,
m = 1, s = +1/2
n = 7, ℓ = 3,
m = -4, s = -1/2
n = 6, ℓ = 4, m = -3, s = -1/2
If n = 7, can ℓ = 4?
Yes
No
If n = 4, can ℓ = 5?
Yes
No
Which of the following is NOT an allowed set of quantum numbers?
Check all that apply
n = 1, ℓ = 3,
m = 0, s = +1/2
n = 4, ℓ = 2,
m = -1, s = -1/2
n = 6, ℓ = 1,
m = 1, s = +1/2
n = 7, ℓ = 1,
m = -2, s = -1/2
n = 8, ℓ = 5,
m = -4, s = -1/2
Which of the following is NOT an allowed set of quantum numbers?
Check all that apply
n = 7, ℓ = 3,
m = -1, s = +1/2
n = 4, ℓ = 4,
m = -1, s = -1/2
n = 6, ℓ = 2,
m = 2, s = +1/2
n = 7, ℓ = 6,
m = -7, s = -1/2
n = 8, ℓ = 0,
m = -4, s = -1/2
If n = 5, can ℓ = 0?
Yes
No
If ℓ = 0, can m = -1?
Yes
No
If ℓ = 3, can m = -2?
Yes
No
If ℓ = 1, can m = -2?
Yes
No
If ℓ = 5, can m = -6?
Yes
No
If ℓ = 5, can m = -7?
Yes
No
How many valence electrons does nitrogen have?
1 Valence electrons
2 Valence electrons
3 Valence electrons
4 Valence electrons
5 Valence electrons
If n=6, what is the largest allowed value of ℓ?
(a)
If n=5, what is the largest allowed value of ℓ?
(a)
If n=4, what is the largest allowed value of ℓ?
(a)
If ℓ=4, can m = -2?
Yes
No
If ℓ=1, can m = -2?
Yes
No
The proper pair of the angular momentum quantum number ℓ value with the orbital shape.
0; f
3; p
1; s
2; d
The magnetic quantum number m determines:
number of orbitals in a sublevel
electron spin
orbital shape
energy level
If ℓ = 2, can m = -1?
Yes
No
If n=4, the largest allowed value of ℓ is
(a)
If n=5, the largest allowed value of ℓ is
(a)
If n=6, the largest allowed value of ℓ is
(a)
If n=7, the largest allowed value of ℓ is
(a)
Any given orbital may hold a maximum of (a) electrons
If ℓ = 4, which of the following are allowed values for m?
Select all that apply
4
5
-1
0
6
If ℓ = 3, which of the following are allowed values for m?
Select all that apply
3
-3
1
-5
4
For l = 0, tick the possible values of m:
-2
-1
0
1
2
The angular momentum quantum number, or ℓ, determins:
orbital color
orbital shape
electron spin
energy level
orbital size
Match the quantum number with its symbol.
Principal Quantum Number
n
Angular momentum quantum number
ℓ
Magnetic quantum number
m
Spin quantum number
s
Which of the following is NOT a possible pair of quantum numbers?
2p
2d
4p
4f
Two electrons in the same orbital should never have the same...
principle quantum number (n)
angular momentum quantum number (ℓ)
magnetic quantum number (m)
magnetic spin (s)
A principal shell with a value of n=3 could contain s, p, d, and f sublevels.
True
False
A principal shell with a value of n=4 can contain s, p, d, and f sublevels.
True
False
As the principal energy level increases in an atom's orbitals, the average distance of an electron energy level from the nucleus ____.
increases
decreases
stays the same
varies
12. A subshell that contains 5 orbitals is ... subshell.
d
s
f
p
The spin quantum number ms , describe
energy level of electron.
the orientation of the orbital in space.
the shape of orbital.
the behavior of electrons as spinning clockwise or anticlockwise in orbital.
Which of these represents the allowable values of the principal quantum number, n?
= 1, 2, 3, . . . ∞
= 0, . . . , n-1
= –ℓ . . ., 0, . . .,+ℓ
+ 1/2 or – 1/2
Which of these represents the allowable values of the angular momentum quantum number, l ?
= 1, 2, 3, . . . ∞
= 0, . . . , n-1
= –l, . . ., 0, . . .,+l
+ 1/2 or – 1/2
Which of these represents the allowable values of the magnetic quantum number, m ?
= 1, 2, 3, . . . ∞
= 0, . . . , n-1
= –ℓ, . . ., 0, . . .,+ℓ
+ 1/2 or – 1/2
Which of these represents the allowable values of the spin quantum number, s ?
= 1, 2, 3, . . . ∞
= 0, . . . , n-1
= –ℓ . . ., 0, . . .,+ℓ
+ 1/2 or – 1/2
There are two electrons in the same orbital. One of the electrons has the following quantum numbers:
n = 2
ℓ = 1
m = +1
s = + 1/2
What are the quantum numbers of the other electron in the same orbital?
n = 2
ℓ = 1
m = +1
s = – 1/2
n = 2
ℓ= 1
m = +1
s = + 1/2
n = 2
ℓ = 1
m = –1
s = + 1/2
n = 3
ℓ = 2
m= –1
s = – 1/2
For two electrons in the same orbital, which of these quantum numbers will have DIFFERENT values?
n
ℓ
m
s
For two electrons in the same orbital, which of these quantum numbers will have the SAME exact values?
n
ℓ
m
s
