4. calculate the energy change that would accompany an electronic transition in a hydrogen atom from n = 2 to n = 3 shell. determine whether radiation is absorbed or emitted during this transition. (rh = 2.18 x10 -18 j)

Aform of energy that is reflected or emitted from objects in the form of electrical and magnetic waves that can travel through space. there are many forms of  electromagnetic  energy including gamma rays, x rays, ultraviolet radiation, visible light, infrared radiation, microwaves and radio waves.

The answer is d, you can easily test a theory! hope i you : )