Types of bonds

Atoms may attain a stable electronic configuration in three different ways: 
by losing electrons, by gaining electrons, or by sharing electrons. 
Elements may be divided into: 
I. Electmpositive elements, whose atoms give up one or more electrons 
fairly readily. 
2. electronegative elements. which will accept electrons. 
3. Elements which have little tendency to lose or gain electrons. 
Three different types of bond may be formed, depending on the electropositive or electronegative character of the atoms involved.

Ionic bonding involves the complete transfer of one or more electrons from one atom to another. Covalent bonding involves the sharing of a pair 
of electrons between two atoms, and in metallic bonding the valency electrons are free to move throughout the whole crystal.



Reference-- consiceInorganic chemistry by JDLee

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