Consider the compounds in given below. Can you make the distinction between electrons involved directly in bonding and lone pairs of electrons not required for the formation of the covalent bond? Which molecules have lone pairs of electrons and how many?
a) Methane b) Hydrogen bromide c) Phosphorus pentachloride d) Oxygen difluoride e) Carbon dioxide
Important Questions on Models
Outline the difference between ionic, covalent and metallic bonding focusing on the following: electrical conductivity as a solid.
Outline the difference between ionic, covalent and metallic bonding focusing on the following: Melting point.
Outline the difference between ionic, covalent and metallic bonding focusing on the following: Solubility in water.
Draw a diagram of metallic bonding and use this to explain the following physical property of a metal:
Electrical conductivity
Draw a diagram of metallic bonding and use this to explain the following physical properties of a metal:
Malleability
Draw a diagram of metallic bonding and use this to explain the following physical property of a metal:
Ductility (the ability to be drawn into a wire)
