Metals And Non-metals Flashcards
Rusting
Is the corrosion of iron (Fe).
Corrosion:
An undesirable process whereby a metal changes to its oxide or some other compound by combining with oxygen from the air.
Rust prevention
Galvanising, painting and greasing.
Galvanising:
Coating with zinc.
Activity series
All metals have similar properties but do not react at the same rate- A good way to compare metals is to see how they react with water and acid.
Properties of metals
Electrical conductors, heat conductors, shiny, sonorous, ductile, malleable, high melting point and hard and dense.
Sonorous
If you hit it, it makes a noise.
Ductile
Can be drawn out into wire.
Malleable
Can be hammered into different shapes.
Alloy
Is a mixture of metals.