Question

What is The Change in Energy When an electron relaxes from n=3 to the n=2 state? is energy absorbed or emited? what is the wavelength of light associated with this transition .​

Answer 1

In this case, the electron is moving to a lower energy level, which means that energy is being absorbed by the electron. This is because the electron has made a transition from a higher energy level (n=3) to a lower energy level (n=2).