1.47: Explain Why Substances with a Simple Molecular Structures are Gases or Liquids, or Solids with Low Melting and Boiling Points ; the Term Intermolecular Forces of Attraction can be used to Represent All Forces Between Molecules

SIMPLE MOLECULAR STRUCTURE: Molecules with atoms joined by strong covalent bonds

INTERMOLECULAR FORCES OF ATTRACTION: Forces of attraction between molecules

s

SUBSTANCES WITH SIMPLE MOLECULAR STRUCTURES:

s

• STATES: Gases, Liquids or Solids

s

• MELTING AND BOILING POINT: Low melting and boiling point as they have weak intermolecular forces of attraction between Molecules, hence only small amounts of heat energy is needed to overcome forces and break down bonds

Examples of Simple Molecular Structures:

Diagram showing the Structures of Simple Molecules