Question

what is atomic radius and covelent bond and ionic bond

Answer 1

Atomic radius is the distance from nucleus of atom to it's last energy level or shell.

Covalent bond is formed by the sharing of electrons between two or more atoms. It occurs between two or more non metals.

Ionic bond is formed by the transfer of electrons from one atom to another. It occurs between one metal and one non metal.

Answer 2

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Characteristics of covalent compounds :

(i) These compounds are molecular in nature (i.e. they exist as single molecules)

(ii) These are insoluble in water and soluble in benzene, kerosene and petrol etc.

(iii) These compounds are poor conductor of electricity.

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