posted by Sandra .
The allowed orbits for the electron around the nucleus of the hydrogen atom are explained by de Broglie as ...
a. Quantized values for the total energy of the electron in the atom
b. Quantized values for the angular momentum of the electron in the atom
c. Standing waves for the electron when considered as a matter-wave
d. Wavelengths of the electromagnetic spectrum where the atom will absorb or emit radiation
e. Experimental errors in low-precision experiments
Read what DeBroglie said.
Now the answer. I think c is the better answer, however, a is essentially the same thing, if you read DeBroglie's words. It would take a politician's logic to separate those concepts. If I were the instructor, I wouldn't mark either wrong.