Asked by Kara

A hydrogen atom in one of its excited states ha an energy of -1.5129^20 J.
What is the frequency of radiation is emitted when the atom relaxes down to its ground state?
Answered by DrBob222
Would you look at your post and proof it please. That 10^20? Is that right?
Answered by Kara
a hydrogen atom in one of its excited states has an energy of -1.5129x10^-20 J
Answered by DrBob222
The energy of the H atom in its ground state is -2.18E-18. Find the difference in the energy, change the negative sign to a positive sign then E = hf and solve for f = frequency. Is that something like 10^15 Hz? You should confirm that.
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