Question

Does electron revolve around nucleus ...???

Answer 1

protrons and nuetrons make up the nucleus; which leaves the electrons to orbit that central mass.

Answer 2

yeah electrons around an atom behave more like waves than particles. they hang out in Orbitals which is quite a different concept to orbits

Answer 3

Electrons don't actually behave more like waves around atoms than they do normally, do they? They just exhibit their wave component more directly.

Answer 4

@badreferences, Actually, they are more wave-like than particle-like. Electron diffraction experiments have shown that. It is actually a consequence of their wave nature that they revolve around the nucleus in well-defined orbits. Otherwise, if they behaved as particles, they would have emitted electromagnetic radiation, lost energy and plummeted into the nucleus.
@Jayasree, Although there is no way to prove that it is so, Rutherford assumed that electrons do revolve in orbits around the nucleus, so that they could withstand the electrostatic force of attraction. This was assumed because it was similar to the way our solar system worked. The planets(electrons) revolved around the sun(nucleus) to counteract the gravitational force due to the sun.
So amazing that the world's tiniest and the world's largest systems work in the same way!

Answer 5

I understand their wave-particle nature. The nature of the electron can be modeled as a particle in some cases, and a wave in others.

But it isn't possible to model their behavior around an atom as, I don't know, a probability gradient of a particle a la statistical mechanics or something?

Answer 6

Well, what I know is that an electron around a nucleus was treated as a wave by Schrodinger. Then he solved his wave equations to obtain the quantum numbers. He could prove the quantization of energy using his equations, which was what was seen from spectra of atoms. So, wasn't his assumption of electron as a wave correct?
And that probability gradient was also a result of those wave equations.

Answer 7

Wavefunction is a probability amplitude, so you're right.

Answer 8

Electrons don't revolve around the nucleus. There is no definite path. They are defined by probabilities only. The Bohr model is no longer in use

Answer 9

If your definition of revolving means going around, then yes. The electron is everywhere and nowhere at the same time. Though using the word "revolves" implies classical mechanics and that is insufficient to describe the motion of the electron in the nucleus.

Answer 10

exactly now a days there is no particular motion to describe motion of electron around nucleus but only probability of finding electron around nucleus at a particular distance called orbital of electron.
in simple words electrons are supposed to appear and disappear at different intervals of time. . .