What do the characteristics of electromagnetic radiation include?
characteristics of both waves and particles
Which equation correctly relates the energy of electromagnetic radiation to its frequency?
E=hv
What causes electrons in atoms to emit energy after absorbing it?
returning to their ground energy states
What observation led scientists to postulate the existence of photons?
electrons in atoms emitting energy only in certain amounts
What observation led scientists to postulate the existence of photons?
A) electrons in atoms emitting energy only in certain amounts
B) discovering that electrons can have varying amounts of energy
C) electrons in atoms emitting energy across the electromagnetic spectrum
D) seeing photons through powerful microscopes
1 answer