it means that there is no charged component in the molecular structure(no positive or negative end that could be attracted to another molecule that is polar or ionically charged)
Since it is not polar it does not orient itself with polar moleculoes like water( this property is called hydrophobic) ans so it does not mix well with water and since lipids are less dense than water, they will float on water.
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in a simple statement, they have HYDROPHOBIC molecules which repel them from water
it means that there is no charged component in the molecular structure(no positive or negative end that could be attracted to another molecule that is polar or ionically charged)
Since it is not polar it does not orient itself with polar moleculoes like water( this property is called hydrophobic) ans so it does not mix well with water and since lipids are less dense than water, they will float on water.