Question

Energy is absorbed when an electron changes from principal energy level3 to 53 to 22 to 14 to 2

Answer 1

`3\text{ to 5}`

Step-by-step explanation:

When an electron moves from one energy level to another, energy is either absorbed or released

When an electron moves from a lower to a higher energy level, energy is absorbed. When an electron moves from a higher level to a lower level, energy is released

Since the electron moves from a lower level 3 to a higher level 5, emergy is absorbed

Thus, movement from 3 to 5 is the answer