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What do you understand by bond pairs and lone pairs of electrons? Illustrate by giving one example of each type.

What do you understand by bond pairs and lone pairs of electrons? Illustrate by giving one example of each type.

Grade:12th pass

2 Answers

Vikas TU
14149 Points
3 years ago
Dear student 
Bond Pairs—The electons which are present be-tween the two atoms and are shared by them are called bonded pair of electrons.
Lone Pairs—The unshared pair of electrons which are present on the atom.
For example, in methane, there are four C-H covalent bonds.
Thus, in methane molecule, four bond pairs of electrons are present.
The electron pairs left in the valence shell without forming the bond are known as lone pairs of electrons.
For example, ammonia molecule has one lone pair of electrons and water molecule has two lone pairs of electrons.
Vikas Amritiya
askIITians Faculty 230 Points
3 years ago

Two atoms share one electron each to form a covalent bond.
The electrons present in the covalent bond are known as bond pair of electrons.
For example, in methane, there are four C-H covalent bonds.
Thus, in methane molecule, four bond pairs of electrons are present.
The electron pairs left in the valence shell without forming the bond are known as lone pairs of electrons.
For example, ammonia molecule has one lone pair of electrons and water molecule has two lone pairs of electrons

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