Magnetic Quantum Number
| Formula / Notation | m_l quantum number: −l to +l integers; e.g., p: m_l = −1, 0, +1 |
|---|---|
| Also Known As | m_l, orbital magnetic quantum number, azimuthal quantum number component |
What is Magnetic Quantum Number?
The quantum number (mₗ) that specifies the orientation of an atomic orbital in space relative to a magnetic field. For a subshell with angular momentum quantum number l, mₗ takes integer values from -l to +l, giving (2l+1) possible orientations. It determines the number of orbitals in each subshell.
Formula & Notation
Other Names / Synonyms: m_l, orbital magnetic quantum number, azimuthal quantum number component
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
The quantum number (mₗ) that specifies the orientation of an atomic orbital in space relative to a magnetic field. For a subshell with angular momentum quantum number l, mₗ takes integer values from -l to +l, giving (2l+1) possible orientations. It determines the number of orbitals in each subshell.
Magnetic quantum numbers explain the number of orbitals in each subshell, the structure of the periodic table, the Zeeman splitting of spectral lines in a magnetic field, the basis of NMR spectroscopy (nuclear spin quantum numbers parallel the concept), and the degeneracy lifting in crystal field th…
No direct safety concern. The magnetic quantum number determines orbital orientation, which is relevant to understanding the directional nature of covalent bonds and why some coordination geometries (octahedral, tetrahedral) are favoured — information used in rational catalyst design.
The formula or notation for Magnetic Quantum Number is: m_l quantum number: −l to +l integers; e.g., p: m_l = −1, 0, +1