Bohr's atom, when electron change in energy level so that its closer to nucleous its mass gets smaller ?

Question

And its velocity tends to approach relativistic speed?

Answer 1

Actually Bohr's model, which looks a bit like our solar system, with the electrons being the planets, is a bit dated. Nowadays, electrons, which tend to congregate in discrete shells or levels surrounding a nucleus, are best depicted as a cloud of probability.

Thus, an electron does not really speed around in one of those shells; instead it kind of jitters around from place to place within that shell. It's the jittering around that forms the probability cloud. The probability of locating an electron is higher inside that shell than outside.

By the way, because of the Heisenberg Uncertainty Principle, if we were to locate the electron, we would not be able to pin point its momentum; and vice versa.

One thing true of the cloud picture and the Bohr model, is that closer shells or orbits possess more energy than outer shells. When an electron gets excited, gaining energy by magnetism for example, it will jump inward toward the nucleus. Conversely, when it loses energy, by radiating light for example, it will jump back to a shell farther away from the center. This is called the Zeeman Effect.

Answer 2

reliable try! the completed mass of the atom remains the comparable. this could be a appropriate occasion of E=mc^2 or E=hf. (i think of you had those equations in techniques once you asked this question.) The skill replace is the two emitted as a photon in case of dropping fro larger to a decrease orbit or a photon of skill is declared whilst an electron movers from decrease to an more suitable orbit.

Answer 3

İt s true.!