3.3.1.3 Isomerism

• Name the 2 types of isomers?

  Structural and Stereo
• What do chain isomers have?

  Different chain of carbon atoms
• When do positional isomers occur?

  When the functional group is situated in different carbon in the molecules
• When does isomerism occur?

  When 2 molecules have the same molecular formula but have different structure layout of atoms
• Name the 3 types of structural isomers.

  Functional group, positional, chain
• What are chain isomers?

  Same molecular formula but a different carbon-skeleton due to the existence of side chains, different physical properties, same chemical properties
• What is a positional isomer?

  Same molecular formula and carbon skeleton, but the functional group is in a different position on the carbon skeleton, different physical properties, similar chemical properties
• What are functional group isomers?

  Same molecular formula but different functional groups, different physical properties and chemical properties
• Define structural isomer.

  Same molecular formula, same number of each type of atoms, but different arrangement of atoms
• Why do branched isomers have smaller volume

  Weaker van de waals
• Define stereoisomers.

  Compounds which have the same structural formula but the bonds are arranged differently in space