electron shell


Also found in: Dictionary, Thesaurus, Wikipedia.

electron shell

[i′lek‚trän ′shel]
(atomic physics)
The collection of all the electron states in an atom which have a given principal quantum number.
The collection of all the electron states in an atom which have a given principal quantum number and a given orbital angular momentum quantum number.
References in periodicals archive ?
All of the elements in the same row, or period, have the same number of electron shells.
207], wherein there is a fourth filled electron shell with 32 electrons and, accordingly, the fourth layer of 16 clusters in the nucleus.
Electron shells of the atoms (known also as the levels) are regularly denoted as K, L, M, N, O, or as plain numbers from 1 to 5.
The electron spin resonance phenomenon is shown by atoms having an odd number of electrons, ions having partly filled inner electron shells and other molecules that carry angular momentum of electronic origin.
It affects the electron shells of atoms without having any significant effects on their nuclei.
The 4f electrons of the lanthanide series of the elements (La - Lu), being well shielded by intervening electron shells, are largely unreactive with neighboring ligands.
Bohr's electron shells were radically different from anything encountered in physics before the quantum era, yet the world at the macroscopic, everyday level behaved just as the classical world-view predicted that it would.
The German chemist Richard Wilhelm Heinrich Abegg (1869-1910) had already suggested in 1904, even before the details of electron shells had been worked out, that chemical reactions were the result of electrons being transferred from one atom to another.
Spin networks are the quantum states of gravity, just as electron shells are the quantum states of the atom," Rovelli notes.
Each atom donates one electron, and this pair of electrons serve to fill the electron shells of both atoms .
These values correspond to the amounts of energy required to remove bonding electrons from an atom's valence electron shells.
Proceeding from the fact that elements with more than seven electron shells are unknown, we can conclude that the scale of the evolutionary oscillations of the Universe in the part of deformations of its own "tissue" is very limited.

Full browser ?