Question: If the principal quantum number n = 4, what are the possible values of l?
Options:
0, 1, 2, 3
1, 2, 3, 4
0, 1, 2, 3, 4
0, 1, 2
Correct Answer: 0, 1, 2, 3
Solution:
For n=4, l can take values 0, 1, 2, or 3.
If the principal quantum number n = 4, what are the possible values of l?
Practice Questions
Q1
If the principal quantum number n = 4, what are the possible values of l?
0, 1, 2, 3
1, 2, 3, 4
0, 1, 2, 3, 4
0, 1, 2
Questions & Step-by-Step Solutions
If the principal quantum number n = 4, what are the possible values of l?
Correct Answer: 0, 1, 2, 3
Step 1: Understand that the principal quantum number 'n' indicates the energy level of an electron in an atom.
Step 2: Know that the azimuthal quantum number 'l' describes the shape of the orbital and can take values from 0 to (n-1).
Step 3: Since 'n' is given as 4, calculate the maximum value for 'l' by subtracting 1 from 'n': 4 - 1 = 3.
Step 4: List the possible values for 'l', which are all the integers from 0 to 3: 0, 1, 2, 3.
Principal Quantum Number – The principal quantum number (n) indicates the energy level of an electron in an atom and can take positive integer values.
Azimuthal Quantum Number – The azimuthal quantum number (l) defines the shape of the orbital and can take integer values from 0 to (n-1).
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