Multiple Choice
Which set of quantum numbers correctly represents the two electrons in a 4s orbital?
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9. Quantum Mechanics
Quantum Numbers: Number of Electrons
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Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
What is the maximum number of electrons that the d-sublevel can hold?
A
14
B
10
C
2
D
6
Verified step by step guidance1
Recall that each electron in an atom is described by a set of quantum numbers, and the sublevel type (s, p, d, f) determines the shape and number of orbitals available.
Understand that the d-sublevel consists of 5 orbitals, each capable of holding 2 electrons with opposite spins according to the Pauli exclusion principle.
Use the formula for the maximum number of electrons in a sublevel: \(\text{Number of orbitals} \times 2\) electrons per orbital.
Calculate the maximum electrons in the d-sublevel as \$5 \times 2$.
Conclude that the d-sublevel can hold a maximum of 10 electrons.
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