Metals (Uses + Properties + Extraction) Flashcards
(25 cards)
Why is X Metal malleable TEMPLATE (2)
- ions in layers
- that can slide over each other
Metallic bonding TEMPLATE (2)
- attraction between:
- positive ions and delocalised electrons
Why can X Metal conduct electricity (1)
- electrons can move
Why is X Metal a good conductor of electricity TEMPLATE (2)
- delocalised electrons
- that can move
Metallic structure TEMPLATE (2)
- giant structure of positive ions
- surrounded by delocalised electrons
Why is Metal X ductile TEMPLATE (2)
- layers and positive ions
- which can slide over each othe\
What is an alloy
- mixture of a metal and one or more elements
- (usually other metals or carbon)
Properties of aluminium
- low density
- corrosion resistant
- malleable
Uses of aluminium
- aircraft
- trains
- saucepans
- cooking foil
Properties of copper
- soft
- ductile
- good conductor of electricity
- doesn’t react with water
Uses of copper
- electrical wiring
- plumbing
Properties of iron
- hard
- but too brittle
What % carbon is low carbon steel
0.25% carbon
Properties of low carbon steel
- soft
- easily shaped
- malleable
- ductile
- rusts easily
What % carbon is high carbon steel
2.5% carbon
Properties of high carbon steel
- hard
- less malleable
- rusts
Uses of low carbon steel
- car bodies (body panels)
Uses of high carbon steel
- cutting tools
Properties of stainless steel
- hard
- resistant to corrosion
Uses of stainless steel
- cutlery
- sinks
What does stainless steel contain
- chromium
- sometimes nickel
Why are alloys harder than pure metals
- pure metals have regular layers
- since all atoms are the same size (layers can slide over each other)
- alloys have different-sized atoms
Which metals can be extracted using reduction by carbon
- all elements under carbon in reactivity series
What is reactivity series FULL
K (please)
Na (stop)
Li (loving)
Ca (cats)
Mg (monkeys)
Al (and)
C (carbon)
Zn (zebras)
Fe (in)
Sn (tin)
H (hydrogen)
Cu (cages)
Ag (seem)
Au (glad)
