is there any similarity between a star and a nuclei? may be because the solar system is similar to the atom?

Question

nuclei is in the center and the electrons revolving around the nuclei

Answer 1

yes and no. An atom is sort of like a little solar system, but not really.

Similarity--planets are bound to a star. Electrons are bound to a nucleus (you don't say a nuclei).

Difference--planets are bound gravitationally. Electrons are bound electromagnetically. This is a minor difference really since both forces are 1/r^2 forces, ie carried by a massless boson (graviton/photon). But the magnitudes of these forces do explain why uranus doesn't notice pluto nearly as much as one electron notices another.

Difference--solar systems are big enough that Newtonian mechanics work. You need quantum mechanics to understand what's going on in an atom. This is a major difference. Kepler figured out how solar systems work centuries ago. We only figured out atoms in the 20s and 30s (Bohr made the first stab, Schrodinger pretty much figured it out, and Dirac really nailed it). You can't really nail electrons down--they live in orbits that describe what their position and momentum are likely to be. They do wierd things like jump from one orbital to another because only discrete solutions to the differential equations that govern their wave functions are allowed.

Answer 2

Mistress Bekki has it nailed. Plus the planets can be defined in terms of location, velocity, and momentum. Electrons are more of a 'cloud' of probability distribution around the nucleus. Also, so vfar as we've ever observed, the outermost planets of solar systems don't 'interact' the same as the outermost shells of electron around atoms do.

Doug

Answer 3

NO they are not the same because in solar system model of atom electron cannot save its orbit
sub atomics are like waves