(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

de Broglies standing wave condition demands that an inegral number of wavelengths fit into the circumference of the Bohr orbit. How many "interal wavelengths" are there in the fourth exited state of Be3+?

2. Relevant equations

n lambda = 2 pi r

3. The attempt at a solution

i tried to solve using the equation above but was confused on lambda and r, both unknowns.

n = 5 because of fourth excited state i think

not sure what use the charge is in this problem...

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# Homework Help: De Broglies standing wave

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