Consider a transition of the electron in the hydrogen atom from n=3 to n=7.

a) Determine the wavelength of light that is associated with this transition. (In meters)

b) Will the light be absorbed or emitted?

For a: The wavelength of light is

For b: The light is getting absorbed

Explanation:

To calculate the wavelength of light, we use Rydberg's Equation:

Where,

= Wavelength of radiation

= Rydberg's Constant  =

= Higher energy level = 7

= Lower energy level = 3

Putting the values in above equation, we get:

Hence, the wavelength of light is

There are two ways in which electrons can transition between energy levels:

As, the electron jumps from lower energy level to higher energy level. The wavelength is getting absorbed.

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