How did Bohr come up with his model before De Broglie?

  • Thread starter Lamarr
  • Start date
  • #1
52
0
Doesn't the Bohr model use standing waves as a reference? Before De Broglie's hypothesis, how did Bohr manage to assume that electrons are waves?
 

Answers and Replies

  • #2
jtbell
Mentor
15,659
3,729
Doesn't the Bohr model use standing waves as a reference?
No.

Before De Broglie's hypothesis, how did Bohr manage to assume that electrons are waves?
He didn't. His original model of 1915 or thereabouts did not use waves at all in describing the hydrogen atom's electrons, as far as I know.

Bohr "explained" hydrogen's discrete energy levels by assuming that the electron's orbital angular momentum is quantized: ##L = mvr = n \hbar##. This of course begs the question, "why is L quantized?" The Bohr-Sommerfeld model generalized the quantization of L to the quantization of the "action integral", which allows for both circular and elliptical orbits. But this line of thought soon petered out because of inconsistency with various experiments. See the Wikipedia article on the Bohr model for a bit about this. For more, see for example the textbook by Eisberg & Resnick.
 
Last edited:
  • #3
52
0
ah makes perfect sense, and fits in very nicely with de broglie's equation, which is based on planck's eqn and relativistic momentum.

Now i see how QM and Relativity come together. Thanks.
 

Related Threads on How did Bohr come up with his model before De Broglie?

Replies
5
Views
964
  • Last Post
Replies
2
Views
1K
  • Last Post
2
Replies
26
Views
16K
  • Last Post
Replies
2
Views
1K
Replies
2
Views
8K
Replies
1
Views
506
  • Last Post
Replies
11
Views
2K
Replies
13
Views
2K
Replies
3
Views
772
Replies
15
Views
388
Top