Yes, they did:
http://en.wikipedia.org/wiki/Bohr_model
From 1913.
Not a complete model, as we now know, but nonetheless, scientists did have a model of the atom 100 years ago.
Yes, they did:
http://en.wikipedia.org/wiki/Bohr_model
From 1913.
Not a complete model, as we now know, but nonetheless, scientists did have a model of the atom 100 years ago.