Multiple Choice
How many sublevels are contained in the third shell (n = 3) for a given atom?
9. Electrons in Atoms and the Periodic Table
Electronic Structure: Subshells
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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
Verified step by step guidance1
Understand that the principal quantum number, n, defines the energy level of an electron in an atom. For this problem, n = 2.
Recall that the azimuthal quantum number, l, defines the shape of the electron's orbital and can take on integer values from 0 to n-1.
Since n = 2, the possible values for l are 0 and 1, because l can be any integer from 0 up to n-1.
The value l = 0 corresponds to an s orbital, and l = 1 corresponds to a p orbital.
Therefore, for the 2 energy level, the possible values of l are 0 and 1, which correspond to the s and p orbitals, respectively.
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