Question

This energy diagram shows the allowed energy levels of an electron in a certain atom. (Note: the SI prefix 'zepto' means 10 −21 . You can find the meaning of any SI prefix in the ALEKS Data tab.) Use this diagram to complete the table below.

Answer 1

1) The ground state energy is 400 zJ

2) The first excited state is 750 zJ

3) A photon will be absorbed for the transition

4) The wavelength is 3 *
`10^{-7` m

What is energy transition in atoms?

When an electron absorbs energy, it can move to a higher energy level. This typically occurs when the atom absorbs a photon with energy equal to the energy difference between the initial and final energy levels of the electron. This process is associated with absorption spectra.

We have that;

ΔE = 1050 zJ - 400 zJ

= 650 zJ

Then;

ΔE = hc/λ

650 *
`10^{-21` = 6.6 *
`10^{-34` * 3 *
`10^8`/λ

λ = 6.6 *
`10^{-34` * 3 *
`10^8`/650 *
`10^{-21`

= 3 *
`10^{-7` m