According to Bohr, an electron in an excited state could give off .....
a continuous cascade of photons for a high-level transition.
Physics check - DrBob222, Friday, April 11, 2008 at 12:28am
I assume what you meant is ok but I would state it a little differently.
could give off a number of wavelenghts of energy when moving from a higher state to a lower state.
You may want to work on that to make it sound better.
Physics check - Molly, Friday, April 11, 2008 at 12:49am
several photons in a series of transitions to the ground state