Niels Bohr
Heisenburg
Neils Bohr assumed that electrons follow circular orbits in his model of the hydrogen atom. However, this was later proven to be incorrect, as electrons travel as waves and are not restricted to two-dimensional motion. They occupy three-dimensional space and do not have circular orbits.
In atomic physics, the Bohr model, devised by Niels Bohr, depicts the atom as a small, positively charged nucleus surrounded by electrons that travel in circular orbits around the nucleus-similar in structure to the solar system, but with electrostatic forces providing attraction, rather than gravity.
Bohr's model describes an atom as small, with a positively charged nucleus surrounded by electrons that travel in circular orbits around the nucleus
because it travels in and around my mouth
Ferme
No, but the do orbit in a certain shell.
Energy levels or energy shells or orbits
Neils Bohr proposed Bohr model of the atom,which states that atom is a small,positively charged nucleus and is surrounded by electrons which travel in circular motions because of electrostatic forceand is similar to the solar system..
That would be it's orbit. The moon orbits the earth in roughly a circular path.
Niels Bohr devised the Bohr model, which depicts the atom as a small, positively charged nucleus surrounded by electrons that travel in circular orbits around the nucleus, with electrostatic forces providing attraction.http://en.wikipedia.org/wiki/Bohr_model
Something is wrong with your question. Atoms aren't considered to travel in "orbits" per-se. Subatomic Particles such as electrons do travel in orbits. I'm trying to think of the exceptions to orbiting electrons. A positively charged hydrogen ion (H+) wouldn't necessary have well defined orbiting electrons, yet positive ions can't really exist independently of negative ions. Many metals can also have an element of delocalized electrons. And, plasma, of course, is an extreme state of electron delocalization.