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the polarity of a molecule - Coggle Diagram
the polarity of a molecule
Polar
This happens most often in atoms with a large difference of more than 0.5 units but lesser than 2.0 units in their electronegativity.
one side being more positively charged and the other side more negatively charged.
the dipole moment will move from less electronegative end to more electronegative end
there is net dipole moment as the polar moments of each bond do not cancel out each other
the distribution of electrons between the covalently bonded atoms is not even
must have polar bond
example
water
non-polar
occur when the electron sharing during a covalent bond is equal
occur among atoms that have similar electronegativity and the difference in their electronegativity is not more than 0.5 units
the electrons are distributed symmetrically.
example
carbon dioxide
helium
hydrogen
ionic
The difference in electronegativity is so great that the electrons are transferred completely.
the difference between the electronegativity is more than 2.0 units
Ionic bonds do occur in polar bonds