Electron Configuration

A list showing how many electrons are in each orbital or subshell.

There are several notations. The subshell notation lists subshells in order of increasing energy, with the number of electrons in each subshell indicated as a superscript.

Example: 1s2 2s2 2p3 means: 2 electrons in the 1s subshell, 2 electrons in the 2s subshell, and 3 electrons in the 2p subshell.

See also: Atom, Electron Orbital Movement, Electron Shell.

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Subjects: Chemistry Nuclear and Particle Physics