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What do you mean by polar and non polar molecules?

6 years ago


Answers : (1)


Dear student Ms. Priyanka;

          Polar covalent is the mid-range - technically closer to ionic. This happens when one atom attempts to take electrons from its partner, but cannot quite attract them all to itself. The result is a covalent bond between the two atoms where the valence electrons are "shared," but the sharing is unequal. One atom pulls the "shared" electrons a little closer to itself. Polar covalent bonds usually occur between very electronegative elements; hydrogen paired with elements like oxygen and fluorine almost always creates polar covalent bonds. A good example of a polar covalent bond is found in water (H2O).

          Non-polar covalent is the least polar - in fact, it is not polar at all. This occurs when valence electrons are shared equally between two atoms. There is little or no tendency for either atom to pull any of the electrons toward itself. Non-polar covalent bonds can often be seen in molecules with two non-metals. Methane (CH4) is an example of a non-polar covalent bond.

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6 years ago

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