Multiple Choice
All of the orbitals in a given subshell have the same value as the ________ quantum number.
9. Quantum Mechanics
Quantum Numbers: Angular Momentum Quantum Number
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How many sublevels are contained in the third shell (n = 3) for a given atom?
A
1
B
2
C
3
D
4
E
5
Verified step by step guidance1
Understand that the principal quantum number, n, represents the shell level of an atom. In this problem, n = 3 indicates the third shell.
Recall that the number of sublevels in a given shell is equal to the principal quantum number, n. Therefore, for n = 3, there are 3 sublevels.
Identify the types of sublevels present in the third shell. These are the s, p, and d sublevels.
Recognize that each sublevel can hold a different number of orbitals: the s sublevel has 1 orbital, the p sublevel has 3 orbitals, and the d sublevel has 5 orbitals.
Conclude that the third shell (n = 3) contains three sublevels: 3s, 3p, and 3d.
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