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Chemistry Paper 1 (transition metals (colourful compounds, can form…
Chemistry Paper 1
transition metals
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central block of table, between groups 2 and 3
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group 7 - halogens
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chlorine - green gas, flourine - yellow gas, bromine - red/brown liquid, iodine - grey solid
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group 1 - alkali metals
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1 outer shell electron, beome +1 ions
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states of matter
gas - far apart, rapid random motion
At mpt, particles gain enough kinetic energy to move around
close together, random arrangement, moving around each other
at bpt, particles gain enough energy to break free from liquid
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solids - closely packed, arranged, vibrate
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explaining trends
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metals
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group 1
as you move down group, more shells, less attraction to nucleus for outer shell elecron
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non-metals
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group 7
as you move down group, more shells
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fullerenes and graphene
fullerenes
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first one = buckminsterfullerene - 60 carbon atoms, spherical
many uses i.e - deliverance of drugs into body, lubricants, catalysts
cylindrical fullerenes
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very thin tubes, high length:diameter ratio
used in tennis rackets, can conduct electricity
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