f subshell capacity MCQ Questions and Answers
1. What is the maximum number of electrons that an f subshell can hold?
A. 2
B. 6
C. 10
D. 14
Correct Answer:
14
Explanation:
An f subshell contains seven orbitals, and each orbital can hold two electrons. Therefore, its maximum capacity is 7 × 2 = 14 electrons.
2. How many orbitals are present in an f subshell?
A. 3
B. 5
C. 7
D. 9
Correct Answer:
7
Explanation:
An f subshell has seven orbitals. Since each orbital accommodates two electrons, the f subshell can hold up to 14 electrons.
3. If all orbitals in an f subshell are completely filled, how many electrons will it contain?
A. 7
B. 10
C. 14
D. 18
Correct Answer:
14
Explanation:
A completely filled f subshell has seven orbitals with two electrons in each orbital, giving a total of 14 electrons.
4. What is the electron capacity of one orbital in an f subshell?
A. 1
B. 2
C. 6
D. 14
Correct Answer:
2
Explanation:
Each orbital, including every orbital in an f subshell, can accommodate a maximum of two electrons.
5. An f subshell is half-filled when it contains how many electrons?
A. 5
B. 7
C. 10
D. 14
Correct Answer:
7
Explanation:
The f subshell has seven orbitals. Half-filling means placing one electron in each orbital, so it contains seven electrons.
6. An f subshell is completely filled with how many electron pairs?
A. 2 pairs
B. 5 pairs
C. 7 pairs
D. 14 pairs
Correct Answer:
7 pairs
Explanation:
A filled f subshell has seven orbitals, and each orbital contains one pair of electrons. Thus, it contains seven electron pairs.
7. Which electron arrangement represents a completely filled f subshell?
A. f²
B. f⁶
C. f¹⁰
D. f¹⁴
Correct Answer:
f¹⁴
Explanation:
The superscript indicates the number of electrons in the f subshell. Since its maximum capacity is 14 electrons, f¹⁴ represents a completely filled f subshell.
8. How many more electrons can an f⁹ subshell accommodate before becoming completely filled?
A. 3
B. 5
C. 7
D. 9
Correct Answer:
5
Explanation:
A filled f subshell holds 14 electrons. An f⁹ subshell already has 9 electrons, so it can accommodate 14 − 9 = 5 more electrons.
9. How many electrons are needed to fill an f⁷ subshell completely?
A. 5
B. 7
C. 8
D. 14
Correct Answer:
7
Explanation:
An f subshell can hold 14 electrons in total. Therefore, an f⁷ subshell needs 14 − 7 = 7 more electrons to become full.
10. Which statement about the capacity of an f subshell is correct?
A. It can hold a maximum of 2 electrons.
B. It can hold a maximum of 6 electrons.
C. It can hold a maximum of 10 electrons.
D. It can hold a maximum of 14 electrons.
Correct Answer:
It can hold a maximum of 14 electrons.
Explanation:
An f subshell consists of seven orbitals, with two electrons possible in each orbital. Hence, its maximum capacity is 14 electrons.
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