CBSE Class 11-science Answered
explain the formation of a chemical bond?
Asked by varonika | 30 Jul, 2010, 12:00: AM
Expert Answer
Chemical bonds refer to the forces holding atoms together to form molecules and solids.They can be formed by sharing of elctrons or by transfer of electrons. They can also said to be the attraction between electrons of one atom to the nucleus of another atom.
They can be ionic or covalent in nature.
In ionic bonding, electrons are transferred from a metal to a non metal resulting in the formation of a positively charged ion(cation) and a negatively charged ion(anion). The oppositely charged ions are attracted to each other by electrostatic forces, which are the basis of the ionic bond
Covalent bonding occurs when two nonmetals share electrons, inorder to gain stabilty. In such a bond both the atoms contribute equal number of electrons
When the shared electron pair is provided by one of the combining atoms, a coordinate bond is formed
Answered by | 30 Jul, 2010, 09:17: PM
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