Question

explain about velancy bond theory

Answer 1

Hey!!
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➡Valence Bond Theory ⬅
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◾The valence Bond Theory was Introduced by HEITLER and LONDON .

◾It is basically based on the concepts of :

⭐Atomic Orbital

⭐Electronic Configuration

⭐Overlapping of Orbital

⭐Hybridization


✔POSTULATES;
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↪The overlapping of two half filled valence orbital results of two different atoms results in the formation of Covalent Bond .

↪Due to this overlapping of Orbital , the density of the electrons increases that makes the bond more stable .

↪If the Atom has more than one unpaired orbital results in more than one bond .

↪These bonds can be categorised into two types :

☑ Sigma Bond : Formed by head to head collision along the inter nuclear axis .

☑ Pi Bond : Formed by side wise overlapping of Orbital .



✔LIMITATIONS :
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↪It doesn't explain the tetra valent nature of Orbital.

↪It doesn't give any idea about the energy associated with orbital .


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