객관식
Which of the following correctly represents the subshell with principal quantum number n = 2 and angular momentum quantum number l = 1?
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9. Quantum Mechanics
Quantum Numbers: Angular Momentum Quantum Number
Multiple Choice
Provide all the possible values of l for a 2 energy level.
A
0
B
0, 1
C
0, 1, 2
D
0, 1, 2, 3
E
1
검증된 단계별 안내1
Understand that the principal quantum number, n, defines the energy level of an electron in an atom. For the 2 energy level, n = 2.
Recall that the azimuthal quantum number, l, defines the shape of the electron's orbital and can take integer values from 0 to n-1.
For n = 2, calculate the possible values of l. Since l ranges from 0 to n-1, substitute n = 2 into the formula to find the range of l.
Determine the possible values of l for n = 2. The values are 0 and 1, as l can be 0, 1, ..., n-1.
Conclude that for the 2 energy level, the possible values of l are 0 and 1, corresponding to the s and p orbitals, respectively.
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