Scelta multipla
According to the Pauli exclusion principle, how many electrons can occupy a single orbital?
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9. Quantum Mechanics
Quantum Numbers: Number of Electrons
Scelta multipla
How many electrons can the fourth energy level (n = 4) hold in an atom?
A
8
B
24
C
16
D
32
Guida verificata passo dopo passo1
Recall that the maximum number of electrons in any energy level (shell) is given by the formula \$2n^2$, where $n$ is the principal quantum number (energy level).
Identify the principal quantum number for the fourth energy level: \(n = 4\).
Substitute \(n = 4\) into the formula: \(2 \times (4)^2\).
Calculate the square of 4: \((4)^2 = 16\).
Multiply by 2 to find the maximum number of electrons: \(2 \times 16 = 32\) electrons.
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