1. Presented by Vicky Zhang

2. • Isomers are molecules that have the same molecular
formula, but have a different arrangement of the atoms in
space.
• Atoms are arranged in a completely different order and
they react differently with other substances in structural
isomers
• The bond angles, shapes and types of bonding can alter;
but the number of each element stays the same

3. Hexane
2-methylpentane

4. 2-methylpentane
2-methylpentane
(not 4-methylpentane)

5. • Chain Isomers:
e.g. CH3-CH2-CH2-CH3
and
• Position Isomers:
e.g. CH3-CH2-CH2-OH
and
• Functional Group Isomers
e.g.
CH3-CH-CH3
|
CH3
CH3-CH-CH3
|
OH

6. • Structural Isomers have the same number of each
element
• They have different atom arrangements
• They react differently with other substances
• Their shape, bond angles and bond types can change