Page 153 - Chemistry--atom first
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Chapter 3 | Electronic Structure and Periodic Properties of Elements 143
Figure 3.22 Shapes of s, p, d, and f orbitals.
If an electron has an angular momentum (l =ΜΈ 0), then this vector can point in different directions. In addition, the z component of the angular momentum can have more than one value. This means that if a magnetic field is applied in the z direction, orbitals with different values of the z component of the angular momentum will have different energies