1 Common rashes include eczema, poison ivy, hives, and athlete's foot. 2  Infections that cause rashes may be fungal, bacterial, parasitic, or viral.  Over-the-counter products may be helpful treatments for many skin rashes.
The conditions under which this process occurs happen in two ways. According to the Cornell Center for... Atoms emit a photon when an electron falls from a high-energy state to a low-energy state. The conditions under which this process occurs happen in two ways. According to the Cornell Center for...
within a single atom, if the atom gains energy, an electron can jump to a higher energy state. when the atom loses the energy, the electron falls back to a lower energy state or its former position. when this happens, light is emitted. caroline m Â· 8 years ago.