Densities Alkyl fluorides and alkyl chlorides (those with just one chlorine atom)are less dense than water (1.00g/ml). Alkyl chlorides with two or more chlorine atoms are denser than water. All alkyl bromides and alkyl iodides are denser than water. 2013 Pearson Education Inc. Densities • Alkyl fluorides and alkyl chlorides (those with just one chlorine atom) are less dense than water (1.00 g/mL). • Alkyl chlorides with two or more chlorine atoms are denser than water. • All alkyl bromides and alkyl iodides are denser than water. 17 © 2013 Pearson Education Inc