What is an excited condition?

In physics, the system is said to be in an excited state if it is at a higher energy level than its basic energy level or ground. The "system" can be an atom, molecule, ion or other particles. When the system absorbs energy, it turns into an excited state and when it radiates energy, it returns to ground. For example, electrons in the atom exist in their ground until they absorb energy that causes to jump to a higher energy orbital. When this happens, then he would say that the electron was in an excited state. They surround the core in a number of atomic orbitals, each corresponding to a discrete energy level. Each orbit around the atomic core, conceptualized as an electron shell, can only hold a certain number of electrons. The lowest energy levels are first filled. When Danshell is filled, the state of higher energy will begin to fill. This energy can come in the form of a photon, a basic unit of light and other electromagnetic radiation. When a photonIt hits an atom, energy drives the electron to a higher energy level.

Electron requires more energy to jump from the first energy level to the second than from the second to the third. This is because the attractive power of the electric field of the core is the strongest near the core and decreases with distance. The electrons on the edge of the electric field, far from the core, can be excited to completely release the atom. When this happens, the atom loses this unit of negative charge and becomes ionized -other words, no longer neutral, but instead becomes a positively charged ion.

The excited state is often short. After jumping to a higher energy level, the electron will usually emit a photon or phonon - a unit of light or heat - to return to its ground state. This may happen naturally through spontaneous emissions or artificially through a stimulated issue. In rare cases is excThe statement is preserved longer in the atom and modifies its chemical properties.

Many light -producing devices are designed to excite electrons to generate photons through spontaneous or stimulated emissions. For example, lasers work through stimulated emissions. Fluorescent tubes and cathode beam tubes use spontaneous emissions to produce light.