Font size
WorksheetsQUANTUM KEM
Total questions: 45
Worksheet time: 31mins
The spin of an electron is represented by this variable:
n
m
l
ms
Orbital sublevels, or l, represents:
orbital color
orbital shape
electron spin
energy level
Which of the following shows a proper pair of the l value with the orbital shape.
0=f
3=p
1=s
2=d
As the energy level goes higher, the electrons
have lower in energy
are more stable
are weaker
are farther from the nucleus
How many electrons total are found in the f orbital?
2
6
10
14
Which of the following is incorrect about the quantum variable m, or l?
m = -l...l
the value for p is -1, 0, 1
when l is 2, there are 5 values for m
the value is either +1/2 or -1/2
If n = 2, what are the allowed values of l ? Select all that apply.
0
1
2
3
What are the possible values of ms?
-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
What does the 1 in "1s" stand for?
energy level
s orbitals
p orbitals
the number of electrons
Which of the following sets of quantum numbers (n, l, ml, and ms) describes the valence electron of Na?
2, 1, 0, -½
2, 0, 0, -½
3, 1, 1, +½
3, 0, 0, +½
What is the maximum number of electrons that can be found in the n=3 energy level?
3
6
8
9
18
(Al, atomic #13) in the ground state?
It is the quantum number that describes the energy of an orbital and its atomic size.
Azimuthal Quantum Number
Principal Quantum Number
Spin Quantum Number
Magnetic Quantum Number
Who proposed that electrons are only found in specific, discrete circular orbits around the nucleus?
Albert Einstein
Erwin Schrodinger
Ernest Rutherford
Niels Bohr
The spin quantum number (ms) refers to
Direction of electron spin
Energy level the electron is in
Sublevel or shape of the orbital the electron is in
Orientation of orbitals around nucleus
How many maximum electrons can exist in the fourth energy level of any atom?
64 electrons
32 electrons
16 electrons
4 electrons
How many orbitals are in the third energy level of an atom?
18
4
9
36
Two electrons in the same orbital must _____________.
spin in the same direction
spin oppositely of each other
share the same set of 4 quantum numbers
Think about the orbital notation diagram for sulfur (S, Z=16). How many unpaired valence electrons are there in a neutral atom of sulfur?
4
3
2
1
How many different sublevels are on n = 4
0
1
2
3
4
What says that electrons within a sublevel must spread out, occupying each orbital before pairing?
Aufbau Principle
Hund's Rule
Pauli Exclusion Principle
Heisenburg Uncertainty Principle
What's a valence electron?
electrons in the second energy level
electrons in the outermost energy level
the same as the atomic number
electrons in the first level
Which element is depicted from this orbital diagram
Fluorine
Neon
Chlorine
Argon
How many valence electrons does the atom represented by this electron configuration [Xe]6s24f145d106p3 have?
3
5
2
13
These orbitals are examples of ________ orbitals
s
p
d
f
Which noble gas does not have eight valence electrons?
He
Ar
Ne
Kr
How many electrons can EACH orbital hold?
2
6
4
8
Which of the following are the possible values of m when l = 2
m = 0
m = -3
m = -2
m = +1
Which of the following sets of quantum numbers are possible?
n=4, l=-1, m =-1, s= +1
n=3, l=2, m=-1, s=+1/2
n=2, l=2, m=-3, s=-1/2
The maximum number of electrons with quantum numbers with n=3 and l=2 is
2
4
6
10
Consider the transition of n=5 to n=2 on the Bohr model of the hydrogen atom. This electron transition ____ energy.
Release
Absorbs
Wave function is represented by the symbol
Ψ
£
þ
µ
Choose the orbital that has set quantum number n = 4, l = 1, and ml = 0
3s
3d
4s
4p
4. Below are the examples of correct set of the atomic quantum number, except... .
n = 2, l =1, ml = 0, ms = -1/2
n = 1, l =3, ml = 0, ms = +1/2
n = 3, l =1, ml = 0, ms = -1/2
n = 3, l = 2, ml = +2, ms = +1/2
