Question

module 4: electrons in atoms test - 11/14/2025
how many orbitals are in the 4f level?
1
3
7
5

Explanation:

Step1: Recall the formula for the number of orbitals in a sub - shell

The number of orbitals in a sub - shell is given by \(2l + 1\), where \(l\) is the azimuthal quantum number. For the \(f\) sub - shell, \(l=3\).

Step2: Calculate the number of orbitals

Substitute \(l = 3\) into the formula \(2l+1\). So, \(2\times3 + 1=7\).

Answer:

7 (corresponding to the option "O 7")