orbital angular momentum
81Tidal locking — A separate article treats the phenomenon of tidal resonance in oceanography. : See the article tidal acceleration for a more quantitative description of the Earth Moon system. Tidal locking occurs when the gravitational gradient makes one side of …
82Molecular term symbol — In molecular physics, the molecular term symbol is a shorthand expression of the group representation and angular momenta that characterize the state of a molecule, i.e. its electronic quantum state which is an eigenstate of the electronic… …
83Spin tensor — In mathematics and mathematical physics, the Euclidean group :SE(d) of direct isometries is generated by translations and rotations. Its Lie algebra is written:mathfrak{se}(d). Noether currentsThe Noether currents for the translations make up the …
84Anti-symmetric operator — In quantum mechanics, a raising or lowering operator (collectively known as ladder operators) is an operator that increases or decreases the eigenvalue of another operator. In quantum mechanics, the raising operator is sometimes called the… …
85List of Hund's rules — In atomic physics, Hund s rules refer to a simple set of rules used to determine which is the term symbol that corresponds to the ground state of a multi electron atom. They were proposed by Friedrich Hund. In chemistry, rule one is especially… …
86spin — spinnability, n. spinnable, adj. /spin/, v., spun or (Archaic) span, spun, spinning, n. v.t. 1. to make (yarn) by drawing out, twisting, and winding fibers: Pioneer women spun yarn on spinning wheels. 2. to form (the fi …
87Triplet state — In physics, spin is the angular momentum intrinsic to a body, as opposed to orbital angular momentum, which is the motion of its center of mass about an external point. In quantum mechanics, spin is particularly important for systems at atomic… …
88Nuclear magnetic moment — The nuclear magnetic moment is the magnetic moment of an atomic nucleus and arises from the spin of the protons and neutrons. It is mainly a magnetic dipole moment; the quadrupole moment does cause some small shifts in the hyperfine structure as… …
89transition element — Chem. any element in any of the series of elements with atomic numbers 21 29, 39 47, 57 79, and 89 107, that in a given inner orbital has less than a full quota of electrons. Also called transition metal. [1920 25] * * * Any chemical element with …
90Optical tweezers — (originally called single beam gradient force trap ) are scientific instruments that use a highly focused laser beam to provide an attractive or repulsive force (typically on the order of piconewtons), depending on the refractive index mismatch… …
