8f Materials Flashcards
What is an element
A substance made out of one type of atom
What is an atom
The smallest particle of an element you can get
Properties of metals
Shiny
Flexible
Heat and electricity conductors
Solids at room temperature
Ductile ( able to stretch into thin wires )
Malleable ( able to be hammered into shape )
Non metal properties
Solids or gases at room temperature
Electrical and heat insulators
A compound is
Two or more metals joined together
What is a molecule
The smallest particle of a compound
Aluminium oxide comes from an ore called
Bauxite
Aluminium metal mapelts at
660 degrees Celsius
Explain how metals are malleable in terms of their atoms
The atoms can slide over each other when a force is applied
Explain how metals have a high density in terms of their atoms
Has a lot of atoms in a small volume
Explain how metals are good conductors of heat in teeprms of their atoms
Hot particles vibrate strong,y and metals atoms are close together so the vibrations are passed on easily . They are also carried by free electrons
