Question

Meaning of Covalent bond​

Answer 1

A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.

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Answer 2

Explanation:

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Covalent Bond is formed when two atoms share their electrons to complete their octate or duplet and become stable.

Depending upon the number of pairs of electrons commonly shared in bond formation, it could be a single, double or triple bond.

Every atoms wants to attain nobel gas

nobel gas/inert gas configuration in order to become Stable..

For example,

H2

i.e one molecule of hydrogen

Hydrogen

1s1

Here in this case,

two hydrogen came together and shared their electron in order to achieve stability.

Which is helium's configration.

Another example,

Chlorine

Cl2

i.e one molecule of chlorine

1s2 , 2s2 , 2p6 , 3s2 , 3p5

Here in second case,

two chlorine will share electron to achieve stability...

But one more question comes then..

(1) Do covalent bond is formed by same atoms only?

Answer:- No,

In case of Hydrogen Fluoride,

HF

H--F

Here also they share electrons to achieve stability..

• Characteristics

1. Covalent compounds are molecular in nature.
2. Covalent bond prosses directional characteristics,hence covalent compound show stereoisomerism.
3. Covalent bond is weak bond and it's bond strength decreases with increase in bond length.
4. These are soluble in non-polar solvents like benzene, but insoluble in water and other polar solvents.
5. Covalent compounds do not conduct electricity due to lack of any free charge carrier
6. They show slow and complex molecular reaction

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