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COVALENT
BOND
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COVALENT
BOND
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Chemical
bond formed between two atoms by the mutual
sharing of electrons is known as Covalent bond. |
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| In covalent bond formation each atom provides equal number of electrons for sharing but no transfer of electrons takes place. Each electron pair is attracted by both the nucleus. | |||
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REPRESENTATION
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Covalent
bond between two atoms is represented by a short line ( )
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| For latest information , free computer courses and high impact notes visit : www.citycollegiate.com | |||
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COVALENT
BOND BETWEEN
H-ATOM AND Cl-ATOM |
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Consider the example of HCl molecule. |
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H atom has only one electron in its valance shell.
It requires one electron to complete its duplet or achieve inert gas configuration.
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Electronic configuration of Cl is K = 2 , L = 8 and M = 7.
Cl atom requires 1 electron to complete its valence shell or octate. |
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Due to small difference between the values of E.N electron transfer from
H or Cl is not possible.
H and Cl share one electron.
In this way without any transfer of electron both H & Cl
complete their outer shell and a stable HCl molecule
is formed. |
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| For latest information , free computer courses and high impact notes visit : www.citycollegiate.com | |||