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The cubical atom was an early atomic model in which electrons were positioned at the eight corners of a cube in a non-polar atom or molecule. This theory was developed in 1902 by Gilbert N. Lewis and published in 1916 in the article "The Atom and the Molecule" and used to account for the phenomenon of valency. [1] Lewis' theory was based on ...
Media related to Gilbert Newton Lewis at Wikimedia Commons; Key Participants: G. N. Lewis - Linus Pauling and the Nature of the Chemical Bond: A Documentary History; Eric Scerri, The Periodic Table, Its Story and Its Significance, Oxford University Press, 2007, see chapter 8 especially; National Academy of Sciences Biographical Memoir
[1] [2] [3] Introduced by Gilbert N. Lewis in his 1916 article The Atom and the Molecule, a Lewis structure can be drawn for any covalently bonded molecule, as well as coordination compounds. [4] Lewis structures extend the concept of the electron dot diagram by adding lines between atoms to represent shared pairs in a chemical bond.
In chemistry, an electron pair or Lewis pair consists of two electrons that occupy the same molecular orbital but have opposite spins. Gilbert N. Lewis introduced the concepts of both the electron pair and the covalent bond in a landmark paper he published in 1916. [1] [2]
Gilbert N. Lewis To explain the octet rule (1893), he developed the " cubical atom " theory in which electrons in the form of dots were positioned at the corner of a cube and suggested that single, double, or triple " bonds " result when two atoms are held together by multiple pairs of electrons (one pair for each bond) located between the two ...
Langmuir's most famous publication is the 1919 article "The Arrangement of Electrons in Atoms and Molecules" in which, building on Gilbert N. Lewis's cubical atom theory and Walther Kossel's chemical bonding theory, he outlined his "concentric theory of atomic structure". [3]
Gilbert N. Lewis and Merle Randall publish Thermodynamics and the Free Energy of Chemical Substances, first modern treatise on chemical thermodynamics. [103] 1923 Gilbert N. Lewis develops the electron pair theory of acid/base reactions. [101] 1924 Louis de Broglie introduces the wave-model of atomic structure, based on the ideas of wave ...
1916 Gilbert N. Lewis and Irving Langmuir formulate an electron shell model of chemical bonding 1917 Albert Einstein introduces the idea of stimulated radiation emission 1918 Ernest Rutherford notices that, when alpha particles were shot into nitrogen gas, his scintillation detectors showed the signatures of hydrogen nuclei.