- octet model
- октетная модель
English-russian dictionary of physics. 2013.
octet model
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Octet rule — The bonding in carbon dioxide (CO2): all atoms are surrounded by 8 electrons, fulfilling the octet rule. The octet rule is a chemical rule of thumb that states that atoms of low (<20) atomic number tend to combine in such a way that they each… … Wikipedia
Octet (music) — In music, an octet is a musical ensemble consisting of eight instruments or voices, or a musical composition written for such an ensemble. Contents 1 Octets in classical music 2 Octets in jazz 3 Octets in popular music … Wikipedia
Quark model — In physics, the quark model is a classification scheme for hadrons in terms of their valence quarks, i.e., the quarks (and antiquarks) which give rise to the quantum numbers of the hadrons. These quantum numbers are labels identifying the hadrons … Wikipedia
Chemical bonding model — Chemical bonding models are theoretical models used to explain atomic bonding structure, molecular geometry, properties, and reactivity of physical matter.[1][2][3][4] Contents 1 Ove … Wikipedia
shell atomic model — ▪ physics simplified description of the structure of atoms that was first proposed by the physicists J. Hans D. Jensen (Jensen, J. Hans D.) and Maria Goeppert Mayer (Mayer, Maria Goeppert) working independently in 1949. In this model,… … Universalium
NE'EMAN, YUVAL — (1925–2006), Israeli physicist, defense expert, engineer, and political activist. Born in Tel Aviv, he graduated from high school at the age of 15 and studied at the Technion (1941–45), graduating in mechanical engineering and applying it at the… … Encyclopedia of Judaism
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
Hypervalent molecule — A hypervalent molecule is a molecule that contains one or more main group elements formally bearing more than eight electrons in their valence shells. Phosphorus pentachloride (PCl5), sulfur hexafluoride (SF6), the phosphate (PO43−) ion, chlorine … Wikipedia
QCD vacuum — The QCD vacuum is the vacuum state of quantum chromodynamics (QCD). It is an example of a non perturbative vacuum state, characterized by many non vanishing condensates such as the gluon condensate or the quark condensate. These condensates… … Wikipedia
PHYSICS — The material presented in this entry emphasizes those contributions which were important in arriving at verified present day scientific results, rather than those that may have appeared important at the time. Unavoidably it will overlap in parts… … Encyclopedia of Judaism
University of California, Berkeley — Seal of the University of California, Berkeley Motto Latin: Fiat Lux Motto in English Let There Be Light … Wikipedia
