- octet theory
- Chemistryஎட்டு எலெக்ட்ரான் கொள்கை
English-Tamil dictionary. 2014.
octet theory
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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 — may refer to: Music Octet (music), ensemble consisting of eight instruments or voices, or composition written for such an ensemble Octet (Beethoven), 1793 composition by Ludwig van Beethoven Octet (Mendelssohn), 1825 composition by Felix… … Wikipedia
Octet (Stravinsky) — Stravinsky in 1921 The Octet for wind instruments is a chamber music composition by Igor Stravinsky, completed in 1923. Stravinsky’s Octet is scored for an unusual combination of woodwind and brass instruments: flute, clarinet in B … Wikipedia
Valence bond theory — In chemistry, valence bond theory explains the nature of a chemical bond in a molecule in terms of atomic valencies. [Murrel, JN, Kettle, SF Tedder, JM The Chemical Bond , John Wiley Sons (1985) ISBN 0 471 90759 6] Valence bond theory summarizes… … Wikipedia
lewis-langmuir theory — |lüə̇ˈslaŋˌmyu̇(ə)r noun Usage: usually capitalized both Ls Etymology: after Gilbert N. Lewis died 1946 and Irving Langmuir died 1957 American chemists : a chemical theory of atomic structure: the atom consists of a positive nucleus surrounded by … Useful english dictionary
History of the periodic table — The history of the periodic table reflects over a century of growth in the understanding of chemical properties, and culminates with the publication of the first actual periodic table by Dmitri Mendeleev in 1869.[1] While Mendeleev built upon… … Wikipedia
Lewis , Gilbert Newton — (1875–1946) Amercan physical chemist Lewis, born the son of a lawyer in Weymouth, Massachusetts, was educated at the University of Nebraska and at Harvard, where he obtained his PhD in 1899. After a period abroad at Göttingen and Leipzig he… … Scientists
atomism — Synonyms and related words: Aristotelianism, Berkeleianism, Bohr theory, Bradleianism, Cynicism, Cyrenaic hedonism, Cyrenaicism, Dirac theory, Epicureanism, Fichteanism, Hegelianism, Heideggerianism, Heracliteanism, Herbartianism, Humism,… … Moby Thesaurus
Aromaticity — is a chemical property in which a conjugated ring of unsaturated bonds, lone pairs, or empty orbitals exhibit a stabilization stronger than would be expected by the stabilization of conjugation alone. It can also be considered a manifestation of… … 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
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
