The L-shell, L-value, or McIlwain L-parameter (after Carl E. McIlwain) is a parameter describing a particular set of planetary magnetic field lines. Colloquially, L-value often describes the set of magnetic field lines which cross the Earth's magnetic equator at …

Mar 12, 2025 · This page enables users to calculate the L-Shell (or McIlwain) parameter for any particle and for any position. The L-Shell parameter is calculated in the shifted tilted dipole approximation, with the simple formula you can find here, using the updated IGRF-13 last parameters (https://www.ngdc.noaa.gov/IAGA/vmod/igrf.html).

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 further and further from the nucleus.

The meaning of L-SHELL is the second innermost shell of electrons surrounding an atomic nucleus.

The L-shell, L-value, or McIlwain L-parameter is a parameter describing a particular set of planetary magnetic field lines. Colloquially, L-value often describes the set of magnetic field lines which cross the Earth's magnetic equator at a number of Earth-radii equal to the L-value.

The L-shell is one of the electron shells surrounding the nucleus of an atom. It is the second innermost shell, located outside the K-shell, and is responsible for holding the second-highest energy level of electrons within the atom.

NOTE 1 It is also referred as L, and is used as a co-ordinate to describe positions in near-Earth space. NOTE 2 L or L shell has a complicated derivation based on an invariant of the motion of charged particles in the terrestrial magnetic field.

See examples of L-SHELL used in a sentence.

May 9, 2024 · Electron shells or energy levels are the outermost part of an atom surrounding the atomic nucleus. It can be thought of as paths followed by electrons around the nucleus.

L-shell refers to the second electron shell in an atom, which is a combination of an S and a P subshell and can hold up to eight electrons. It is characterized by three energy peaks in its electron configuration.