1 Schedule for the concerts in Regina is refreshed on a regular basis. 2  Regina is really one of the best areas for concert tours in America.
1 Niels Bohr suggested that electrons in an atom were restricted to specific orbits around the atoms nucleus. 2  Bohr argued that an electron in a given orbit has a constant energy, thus he named these orbits energy level.
Before Niels Bohr, Rutherford said that the electrons are orbiting the nucleus in levels or orbits by using his planetary model of the atom. Rutherford didn't bring out the idea of these levels being actually energy levels. This is his most famous discovery.