Question

An electron in a hydrogen atom is excited from the n = 1 ground state to the n = 4 excited state. Classify the statements about this absorption and emission process as true or false. 

True 

On average, the electron is closer to the nucleus in the n = 4 state than in the n = 1 state. 

The wavelength of light absorbed when the electron is excited from the ground state to n = 4 is the same as the wavelength of light emitted when the electron falls from n = 4 to the ground state. 

False

It takes less energy to ionize the electron from the n = 4 state than from the ground state. 

The wavelength of light emitted when the electron falls from = 4 to = 2 is shorter than the wavelength of light emitted when the electron falls from n = 4 ton = 1. 

Then = 4 excited state is the first possible excited state.

Answer 1

Answer 2

True:

• The wavelength of light absorbed when the electron is excited from the ground state to n=4 is the same as the wavelenght of light emitted when moving fromn=4 to ground state
• it takes less energy to ionise electron from the n=4 state thane ground state

False:

• on average electron in the n=4 state is closer than n=1 state
• The wavelength of light when electron falls from n=4 to n=2 is shorter than falling to n=1
• The n=4 is the first excited state