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Chemical Bonding and Shapes of Molecules
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♪⚝Sanjiv❀Jaiswal❁⩸
· chemistry
Distorted Geometry
↪ The presence of one or more lone pairs of electrons in the valence shell of the central atom gives distorted geometry to the molecules or ion. Some examples of such molecules are: Shape of NH3 Mo...
♪⚝Sanjiv❀Jaiswal❁⩸
· chemistry
Valance bond theory (VBT)
↪ Valence bond theory (VBT) was proposed by Heitler and London in 1927 and improved by Linus Pauling to explain the nature of bonding in covalent molecules. ↪ This theory is based on wave mechanica...
Mukesh dahal
· chemistry
VSEPR THEORY
The Valence Shell Electron Pair Repulsion Theory abbreviated as VSEPR theory (proposed by Sedgwick and Powell 1940 and developed by Gillespie and Nyholm 1957 )is based on the premise that this arra...
Cyrus Roy
· chemistry
Collision Theory: For a Layman
Before understanding about collision theory, we need to learn as to how chemical reactions take place. We know that for a chemical change to occur, the breaking of pre-existing bonds and the format...
♪⚝Sanjiv❀Jaiswal❁⩸
· chemistry
Lewis (electron dot) structures
Lewis’s structure of some common molecules are given below:Failure of octet rule ↪ There are several stable molecules in which the octet rule is violated. ↪ In these molecules valence shell contain...
♪⚝Sanjiv❀Jaiswal❁⩸
· chemistry
Electron Theory of Valency
↪ In order to explain combination of atoms, Lewis and Kossel introduced electronic theory of valency from the beginning of 20th century.↪ Kossel mainly stressed to the formation of electrovalent bo...
..S̘͖͚̱͈̟̖̣ͩͨ̅͑̑͋͆a̸̢̙̙̗̬̳̳ͩͥͨ̔͋m̸̖̼̹̦͍̙͕̝̬̭̳͠ͅi̥̦͉̟͖͙̪̳͎̟̜̳͎ͪ̽ͣ̉̾̋ͥ̎́̐ͫ̌͘͟r̸̙̥̜̺̼̱̩͍͉͙͕̍̐ͮ̏̒..
· chemistry
Electronic Theory of Valency and Bonding
INTRODUCTIONElectronic theory of valency was given by Gilbert N. Lewis and Walther Kossel. This theory of valency explains the main cause of chemical combination and combining capacity of different...
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