orbital theory

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• Molecular orbital theory — In chemistry, molecular orbital (MO) theory is a method for determining molecular structure in which electrons are not assigned to individual bonds between atoms, but are treated as moving under the influence of the nuclei in the whole… …   Wikipedia

• Orbital tuning — refers to the process of adjusting the time scale of a geologic or climate record so that the observed fluctuations correspond to the Milankovitch cycles in the Earth s orbital motion. Because changes in the Earth s orbit affect the amount and… …   Wikipedia

• Orbital hybridisation — Four sp3 orbitals. Three sp2 orbitals. In …   Wikipedia

• Orbital atómico — Orbitales atómicos y moleculares. El esquema de la izquierda es la regla de Madelung para determinar la secuencia energética de orbitales. El resultado es la secuencia inferior de la imagen. Hay que tener en cuenta que los orbitales son función… …   Wikipedia Español

• Orbital magnetization — Orbital magnetization, , refers to the magnetization induced by orbital motion of charged particles, usually electrons, in solids. The term orbital distinguishes it from the contribution of spin degrees of freedom, , to the total magnetization. A …   Wikipedia

• Orbital forcing — is the effect on climate of slow changes in the tilt of the Earth s axis and shape of the orbit (see Milankovitch cycles). These orbital changes change the total amount of sunlight reaching the Earth by up to 25% at mid latitudes (from 400 to 500 …   Wikipedia

• Orbital overlap — was an idea first introduced by Linus Pauling to explain the molecular bond angles observed through experimentation and is the basis for the concept of orbital hybridisation. s orbitals are spherical and have no directionality while p orbitals… …   Wikipedia

• Orbital Stability — may refer to: The stability of orbits of planetary bodies Resonance between said orbits The closure of the orbit of a reductive group, in geometric invariant theory A stable electron configuration This disambiguation page lists articles… …   Wikipedia

• Orbital mechanics — A satellite orbiting the earth has a tangential velocity and an inward acceleration. Orbital mechanics or astrodynamics is the application of ballistics and celestial mechanics to the practical problems concerning the motion of rockets and other… …   Wikipedia

• Orbital-free density functional theory — In computational chemistry, orbital free density functional theory is a quantum mechanical approach to electronic structure determination which is based on functionals of the electronic density. It is most closely related to the Thomas–Fermi… …   Wikipedia

• Orbital perturbation analysis (spacecraft) — Isaac Newton in his Philosophiæ Naturalis Principia Mathematica demonstrated that the gravitational force between two mass points is inversely proportional to the square of the distance between the points and fully solved corresponding two body… …   Wikipedia