subshell electron

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• Electron configuration — Electron atomic and molecular orbitals Simp …   Wikipedia

• Electron shell — Periodic table with electron shells An electron shell may be thought of as an orbit followed by electrons around an atom s nucleus. The closest shell to the nucleus is called the 1 shell (also called K shell ), followed by the 2 shell (or L shell …   Wikipedia

• subshell — ˈsəbˌˌ noun Etymology: sub + shell (I) : any of the one or more orbitals making up an electron shell of an atom * * * /sub shel /, n. Physics. a group of electrons in an atom belonging to the same shell and also having the same azimuthal quantum… …   Useful english dictionary

• d electron count — The d electron count is a chemistry formalism used to describe the electron configuration of the valence electrons of a transition metal center in a coordination complex.[1][2] The d electron count is an effective way to understand the geometry… …   Wikipedia

• Delocalized electron — Benzene, with the delocalization of the electrons indicated by the circle. In chemistry, delocalized electrons are electrons in a molecule, ion or solid metal that are not associated with a single atom or one covalent bond. [ …   Wikipedia

• chemical bonding — ▪ chemistry Introduction       any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world. When atoms approach one another …   Universalium

• Atomic orbital — The shapes of the first five atomic orbitals: 1s, 2s, 2px, 2py, and 2pz. The colors show the wave function phase. These are graphs of ψ(x,y,z) functions which depend on the coordinates of one electron. To see the elongated shape of ψ(x,y,z)2… …   Wikipedia

• rare-earth element — /rair errth /, Chem. any of a group of closely related metallic elements, comprising the lanthanides, scandium, and yttrium, that are chemically similar by virtue of having the same number of valence electrons. Also called rare earth metal. [1955 …   Universalium

• periodic law — /pear ee od ik, pear /, Chem. 1. the law that the properties of the elements are periodic functions of their atomic numbers. 2. Also called Mendeleev s law. (originally) the statement that the chemical and physical properties of the elements… …   Universalium

• Term symbol — In quantum mechanics, the term symbol is an abbreviated description of the angular momentum quantum numbers in a multi electron atom. It is related with the energy level of a given electron configuration. LS coupling is assumed. The ground state… …   Wikipedia

• Hund's rule of maximum multiplicity — is an observational rule which states that a greater total spin state usually makes the resulting atom more stable. Accordingly, it can be taken that if two or more orbitals of equal energy are available, electrons will occupy them singly before… …   Wikipedia