Question

chemical bonding ncert exercise std.11th ​

Answer 1

Answer:

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Explanation:

Chemical Bond

It is defined as the attractive forces which hold the various chemical constituents (atoms, ions, etc.) together in different chemical species.

Bond forms to get the stability. with a release of energy.

Kossel-Lewis Approach to Chemical Bonding

According to this theory. atoms take part in the bond formation to complete their octet or to acquire the electronic configuration of the nearest inert gas atoms (Octet rule). This can be achieved by gaining, losing or sharing the electrons.

Lewis Symbols

Valence electrons are reported by dots around the chemical symbol of element, e.g.,

Ionic Bond

A chemical bond formed by complete transference of electrons from one atom (metal) to another (non-metal) and hence, each atom acquire the stable nearest noble gas configuration, is called ionic bond or electrovalent bond, e.g., formation of sodium chloride

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