What is Niels Bohr’s Theory

In 1913, Niels Bohr proposed a theory for the hydrogen atom, based on quantum theory that some physical quantities only take discrete values. Electrons move around a nucleus, but only in prescribed orbits, and If electrons jump to a lower-energy orbit, the difference is sent out as radiation.

Usually this mountain-building process produces majestic peaks and steep slopes. you should look for these along the other features.