What type of molecule has a positive and negative end? Nonpolar Polar

## Step 1<br />The question is asking about the type of molecule that has a positive and negative end. This is a characteristic of a polar molecule.<br /><br />## Step 2<br />Polar molecules are those in which the center of positive charge is different from the center of negative charge. This means that the molecule has a positive end and a negative end.<br /><br />## Step 3<br />This happens when the atoms in the molecule have different electronegativities. Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons. The atom with the higher electronegativity will pull the electrons closer to itself, creating a negative charge on that end of the molecule.<br /><br />## Step 4<br />On the other hand, nonpolar molecules have a uniform distribution of charge, meaning they do not have distinct positive and negative ends.