Atomic gas

An atomic gas is a gas of atoms, as opposed to molecules. At normal temperatures an atomic gas can be described as an ideal gas.

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Some elements that exist naturally as atomic gases are Hydrogen and the noble gases, Helium, Neon, Argon, Krypton and Xenon.

An atomic gas which is cooled to an extremely low temperature is said to be a highly degenerate atomic gas, and it can be either a bose gas or a fermi gas.