Non-polar
An iodine molecule is formed by two 'I' atoms. It implies that the molecule is symmetrical and it is non-polar.
Iodine is a molecule with two idodine atoms and it is a non-polar substance.
CH3CN, Acetonitrile, is a polar molecule. With the triple bond between C and N, a negative charge weighs to the Nitrogen, while on the other "side" of the molecule the Hydrogen atoms tend to a...
polar