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...
-Each line is due to light of a certain colour and therefore wavelength. -The photons that produce the lines have the same energy, which is different to the photons that produce the other lines. -Each photon is emitted when an atom de-excites due to one of its electrons moving to an inner shell.