If its molecular geometry is completely symmetrical, a molecule is nonpolar. If the molecular geometry is unsymmetrical, the molecule is polar because of t he lone pair of electrons on the c central atom. Polar bonds (due to differences in the electronegativities) may reinforce or oppose the effect of the lone pairs of electrons. Some examples are a s follow
If its
molecular geometry is completely symmetrical, a molecule is nonpolar. If the molecular geometry is unsymmetrical, the molecule is polar because of t he lone pair of electrons on the c central atom. Polar bonds (due to differences in the electronegativities) may reinforce or oppose the effect of the lone pairs of electrons. Some examples are a s follow
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