1. How many orbitals are present in an s subshell?
A.
One
B.
Two
C.
Three
D.
Five
Correct Answer:
One
Explanation:
An s subshell contains only one orbital.
2. What is the maximum number of electrons that can occupy an s subshell?
A.
1
B.
2
C.
6
D.
10
Correct Answer:
2
Explanation:
The single orbital in an s subshell can hold a maximum of two electrons.
3. What is the general shape of an s orbital?
A.
Dumbbell-shaped
B.
Spherical
C.
Cloverleaf-shaped
D.
Linear
Correct Answer:
Spherical
Explanation:
An s orbital has a spherical region of electron probability around the nucleus.
4. What is the azimuthal quantum number for an s subshell?
A.
0
B.
1
C.
2
D.
3
Correct Answer:
0
Explanation:
The azimuthal quantum number for every s subshell is l = 0.
5. Which notation represents an s subshell?
A.
2p
B.
3d
C.
1s
D.
4f
Correct Answer:
1s
Explanation:
The notation 1s identifies the s subshell in the first principal shell.
6. How many orientations are possible for an s orbital?
A.
One
B.
Two
C.
Three
D.
Five
Correct Answer:
One
Explanation:
Since an s subshell has l = 0, it contains only one orbital and therefore one orientation.
7. Which subshell is spherical in shape?
A.
s subshell
B.
p subshell
C.
d subshell
D.
f subshell
Correct Answer:
s subshell
Explanation:
The s subshell is characterized by its spherical shape.
8. Which electron arrangement correctly shows a completely filled s subshell?
A.
s¹
B.
s²
C.
s³
D.
s⁴
Correct Answer:
s²
Explanation:
An s subshell has one orbital, and that orbital can contain a maximum of two electrons.
9. Which statement about an s subshell is correct?
A.
It contains three orbitals
B.
It can hold six electrons
C.
It contains one orbital
D.
It has a dumbbell shape
Correct Answer:
It contains one orbital
Explanation:
An s subshell contains one spherical orbital and can hold up to two electrons.
10. Which of the following is an example of an s orbital?
A.
2s
B.
2p
C.
3d
D.
4f
Correct Answer:
2s
Explanation:
The notation 2s represents an orbital belonging to the s subshell.
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