Electrons move in elliptical orbits around the nucleus of an atom. - False. They move in a random manner around the nucleus of an atom
The energy levels of all atoms are quantized. - True. Each energy level has a permissible energy associated with it.
Atoms can lose energy by emitting a photon. - True. When an electron moves from a higher energy level to a lower one, it loses energy and this is emitted as a photon of light.
Electron states are described by orbits, which indicate exactly where an electron is located in an atom. - False. One can not tell exactly where an electron is located at any given time.
Energy travels through space in the form of electromagnetic radiation.- True.
