Metals Flashcards
Give me 6 properties of a metal
Heat conductor
Electricity conductor
Malleable
Ductile
Sonorous
Shiny when freshly cut
What does sonorous metal mean
This means that metals make a ringing sound when we strike the metal.
What does Malleable metal mean
A malleable material is one in which a thin sheet can be easily formed by hammering or rolling.
Ductile meaning
The physical property of a metal that can be drawn into the thin wire
Where in the periodic table are metals found?
Left side and centre of the periodic table
Give three magnetic metals
Iron
Cobalt
Nickel
Define a Metal ore
Metal ores are all the materials which are removed from the mine for the purpose of extracting the desired metals.
Define a battery and name the essential parts
2 electrodes made of 2 different metals.
The bigger the difference in reactivity the more powerful the battery
Anode-Zinc
Cathode-Graphite core
Electrolyte-Ammonium Chloride
A battery is a collection of one or more cells that use chemical reactions to create the flow of electrons within a circuit.
Define a displacement reaction
It occurs when a metal of higher reactivity displaces a lower reactivity metal to obtain the less reactive metal on its own.
What is rust and which metals rust
Rust is the corrosion of iron and steel.
Describe the conditions needed for rusting to occur
Oxygen and water
Describe ways of preventing rusting and give examples of objects protected by these methods.
Oiling
Waxing
Greasing
Painting
Coating
Galvanising
e.g. Nail cutters, a section of a car with removed paint.
Oxides of metals are
alkaline
oxides of non-metals are
Acid
