Comparison chart
Covalent Bonds versus Ionic Bonds comparison chart
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Covalent
Bonds
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Ionic
Bonds
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Polarity
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Low
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High
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Formation
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A covalent bond is formed between two non-metals
that have similar electronegativities. Neither atom is "strong"
enough to attract electrons from the other. For stabilization, they share
their electrons from outer molecular orbit with others.
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An ionic bond is formed between a metal and a
non-metal. Non-metals(-ve ion) are "stronger" than the metal(+ve
ion) and can get electrons very easily from the metal. These two opposite
ions attract each other and form the ionic bond.
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Shape
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Definite shape
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No definite shape
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What is it?
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Covalent bonding is a form of chemical bonding between
two non metallic atoms which is characterized by the sharing of pairs of
electrons between atoms and other covalent bonds.
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Ionic bond, also known as electrovalent bond is a
type of bond formed from the electrostatic attraction between oppositely charged
ions in a chemical compound. These kinds of bonds occur mainly between a
metallic and a non metallic atom.
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Melting point
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Low
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High
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Examples
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Methane (CH4), Hydro Chloric acid (HCl)
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Sodium chloride (NaCl), Sulphuric Acid (H2SO4 )
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Occurs between
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Two non-metals
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One metal and one non-metal
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Boiling point
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Low
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High
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State at room temperature
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Liquid or gaseous
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Solid
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