Question

How do you arrange the following sublevels in order of decreasing energy: `3s`, `3d`, and `3p`?

Answer 1

`"3d"`, `"3p"`, `"3s"`

Explanation:

The diagram below shows the energy of each sublevel relative to one another. Notice also that all `"s"`, `"p"`, `"d"`, and `"f"` sublevels have the same number of orbitals and the orbitals have the same amount of energy.