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In chemistry and atomic physics, an electron shell may be thought of as an orbit that electrons follow around an atom 's nucleus. The closest shell to the nucleus is called the "1 shell" (also called the "K shell"), followed by the "2 shell" (or "L shell"), then the "3 shell" (or "M shell"), and so on farther and farther from the nucleus.
In atomic physics and quantum chemistry, the electron configuration is the distribution of electrons of an atom or molecule (or other physical structure) in atomic or molecular orbitals. [ 1 ] For example, the electron configuration of the neon atom is 1s2 2s2 2p6, meaning that the 1s, 2s, and 2p subshells are occupied by two, two, and six ...
This page shows the electron configurations of the neutral gaseous atoms in their ground states. For each atom the subshells are given first in concise form, then with all subshells written out, followed by the number of electrons per shell. For phosphorus (element 15) as an example, the concise form is [Ne] 3s 2 3p 3.
2, 8, 18, 32, 32, 16, 2 (predicted) This 5s 0 configuration, unique in period 5 , makes palladium the heaviest element having only one incomplete electron shell , with all shells above it empty. Palladium has the appearance of a soft silver-white metal that resembles platinum.
2, 8, 18, 32, 32, 18, 8 (predicted) The noble gases have full valence electron shells . Valence electrons are the outermost electrons of an atom and are normally the only electrons that participate in chemical bonding .
4d 10 5s 2 5p 6: Electrons per shell: 2, 8, 18, 18, 8: Physical properties; ... Because of the xenon atom's large, flexible outer electron shell, ...
Electrons per shell: 2, 8, 18, 18, 1: ... This distinctive electron configuration, with a single electron in the highest occupied s subshell over a filled d subshell, ...
Electrons per shell: 2, 8, 18, 12, 1: ... All of niobium's isomers decay by isomeric transition or beta decay except 92m1 Nb, which has a minor electron capture ...