Covalent Bonding

• What is covalent bonding?

  Sharing a pair of electrons between non metals
• Small Covalent Molecules

  Usually gases or liquids,Low melting points and boiling points,Only weak intermolecular forces between the molecules,Cannot conduct electricity because the molecules do not have an overall electric charge
• Large Covalent Molecules

  Have higher melting and boiling points
• Need to learn these!!!!

  
• Properties of small molecules

  -Gases at room temp

  -Low boiling and melting points

  -Do not conduct electricity
• Why are small molecules gases at room temperature?

  They have low boiling points as they have weak intermolecular forces between molecules so small amount of energy is needed to overcome forces of attraction
• Why do small molecules have low boiling points?

  They are gases at room temp and small molecules have weak intermolecular forces between molecules so small amount of energy is needed to overcome forces of attraction
• Why do small molecules not conduct electricity?

  Molecules do have an overall electrical charge and small molecules are not ions and you need ions to carry the charge