Explain why excited atoms only emit certain frequencies of radiation after an electron collides with the atom

  1. Radiation is emitted via photons2) Photon energy is governed by the equation E = hc/wavelength, where h = the Planck constant and c = the speed of light. Both h and c are constants3) Electrons have discrete energy levels, so the change in energy of the atom is also discrete4) As photon energy is inversely proportional to the wavelength and the photon energy is discrete, the wavelength and frequency of the emitted photons must also be discrete.
MH
Answered by Michael H. Physics tutor

5608 Views

See similar Physics A Level tutors

Related Physics A Level answers

All answers ▸

A ball is released from height h w.r.t. the ground. Draw a qualitative height versus time diagram of the ball bouncing in a non-ideal case.


Why do skydivers have a terminal velocity?


Show that a mass on a spring obeys simple harmonic motion.


Explain how the photoelectric effect gives evidence for the photon theory of light.


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning