Embedded Files
Learning Objectives
Learning Objectives
the common properties of metals (lustre, malleability, ductility, melting point, heat conductivity and electrical conductivity) with reference to the nature of metallic bonding and the existence of metallic crystals
experimental determination of a reactivity series of metals based on their relative ability to undergo oxidation with water, acids and oxygen
metal recycling as an example of a circular economy where metal is mined, refined, made into a product, used, disposed of via recycling and then reprocessed as the same original product or repurposed as a new product
Summary Notes
Summary Notes
What is Metallic Bonding?
What is Metallic Bonding?
Metallic lattice structures are made up of an array of cations (positively charged ions). The outer shell electrons from each metal atom are found in a common sea and are delocalized.
Electrostatic forces of attraction between the positively charged cations and the negatively charged electrons hold the lattice together.
Properties of Metals
Properties of Metals
good conductors of heat and electricity (charged particles, electrons, are free to move).
high melting points.
malleable (shaped easily).
ductile (formed into wires).
often hard (do not break easily).
are lustrous (have a shiny surface when polished).
An image of silver (Ag) coins (Pixabay License)
Recycling of Metals
Recycling of Metals
Video to help build your understanding
Video to help build your understanding
Metallic Bonding and Properties
Metallic Bonding and Properties
Practice Material
Practice Material
Teacher's Tip:
Almost all properties of metals can be explained by the presence of the strong electrostatic attaction between metal cations and the delocalised electrons. Be sure to include this as part of your explanation.
Page updated
Google Sites
Report abuse