An electron in a lower energy level is both closer to the nucleus and has fewer electrons between itself and the nucleus. |
Air pistols are limited by law to a kinetic energy level of six foot-pounds. |
When a photon strikes the surface of a metal, it raises the energy level of the metal and causes the ejection of electrons. |
An electric field emanating from the charged red atom causes energy level shifts in the molecule, allowing current to flow. |
This means that an atom with eight electrons in its outermost energy level is very stable. |
When an electron falls from a higher energy level to a lower energy level, a photon is given off. |