Compare the properties of metals and non-metals, and learn how to distinguish them based on physical characteristics.
Metals are generally shiny (lustrous), good conductors of heat and electricity, malleable (can be hammered into sheets), and ductile (can be drawn into wires).
Why is copper used for electrical wiring?
Because it's a good conductor of electricity and is ductile, so it can be drawn into thin wires
What does it mean for a metal to be malleable?
It can be hammered or pressed into thin sheets without breaking
Non-metals are generally dull (not shiny), poor conductors of heat and electricity, and brittle in solid form.
Why is sulfur classified as a non-metal?
It's dull in appearance, doesn't conduct electricity well, and is brittle rather than malleable
Name a non-metal that is an exception — good conductor of electricity.
Graphite (a form of carbon)
1. Name two properties of metals.
2. Name two properties of non-metals.
3. What does 'ductile' mean?
4. Is carbon (graphite) a metal or non-metal, despite conducting electricity?
5. Give an example of a metal used in everyday life.