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VCE Unit 1 Chemistry > Chapter 4 Metals > Flashcards

Chapter 4 Metals Flashcards

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1
Q

alkali metal

A

a group 1 metal

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2
Q

alloy

A

a substance formed when other materials are mixed with a metal

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3
Q

blast furnace

A

a type of furnace used for the extraction of metals from their ores, including iron from iron oxides

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4
Q

cation

A

a positively charged iron

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5
Q

circular economy

A

an economy based on a model of production and consumption that aims to design out waste and pollution, keep products and materials in use and regenerate natural systems

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6
Q

coke

A

a solid that contains 80-90% carbon and is produced by strongly heating coal in the absence of air

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7
Q

conductor

A

an object or type of material that permits the flow of electric charges

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8
Q

crystal

A

a solid made up of atoms or molecules arranged in a repeating three-dimensional pattern

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9
Q

delocalise

A

spread out

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10
Q

delocalised electron

A

an electron that is not restricted to the region between two atoms

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11
Q

density

A

a measure of the amount of mass per unit volume

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12
Q

ductile

A

able to be drawn into a wire

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13
Q

e-waste

A

electronic waste; electronic products that are unwanted, not working and at the end of their life cycle

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14
Q

effective nuclear charge

A

the net positive charge experienced by an electron in an outer shell of an atom; indicates the attractive force felt by the valence electrons towards the nucleus

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15
Q

electrolysis

A

the production of a reaction by the passage of electrical energy from a power supply through a conducting liquid

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16
Q

ferrous

A

a material containing iron

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17
Q

in-situ leaching

A

solution mining; involves leaving the ore where it is in the ground and recovering the minerals from it by dissolving them and pumping the solution to the surface where the minerals can be recovered

18
Q

inert

A

not chemically reactive

19
Q

ionisation energy

A

the energy required to remove one electron from an atom of an element in the gas phase

20
Q

lattice

A

a regular arrangement of large numbers of atoms, ions or molecules

21
Q

limestone

A

a mineral composed of calcium carbonate

22
Q

linear economy

A

an economy in which raw materials are used to make a product, and after its use, the product is thrown away

23
Q

lustrous

A

having the quality of reflecting light in a glossy and shiny way

24
Q

malleable

A

able to be bent or beaten into sheets

25
Q

metallic bonding

A

the electrostatic attractive forces between delocalised valence electrons and positively charged metal ions

26
Q

metallic bonding model

A

a model that explains the properties and behaviour of metals in terms of the particles in metals

27
Q

mineral

A

a naturally occurring inorganic substance that is solid and can be represented by a chemical formula

28
Q

molten

A

materials that are normally found as solids but are liquid, melted, due to elevated temperature

29
Q

non-ferrous

A

a metal other than iron or steel

30
Q

ore

A

a mineral or an aggregate of minerals that contains a valuable constituent, such as metal, which is mined or extracted

31
Q

primary smelter

A

an installation or factory that is used to extract metals from their ores using high temperatures; scrap metal is also processed in some primary smelters

32
Q

reactivity

A

the ease with which a chemical can undergo reactions

33
Q

reactivity series of metals

A

a ranking of metals in increasing order of their reactivity

34
Q

roasting

A

a process of heating a sulfide ore to a high temperature in air

35
Q

scrap metal

A

discarded metal that is suitable for reprocessing

36
Q

secondary smelter

A

an installation or factory that is used to extract metals from scrap metals using high temperatures

37
Q

slag

A

a mixture of waste materials left over after a desired metal has been removed from its ore

38
Q

smelting

A

a process of applying heat to ore to extract a metal

39
Q

steel

A

a generally hard, strong, durable and not malleable alloy of iron and carbon

40
Q

tensile strength

A

the maximum resistance of a material to a force which is pulling it apart before breaking, measured as the maximum stress the material can withstand without tearing

41
Q

transition metal

A

an element in groups 3-12 of the periodic table

VCE Unit 1 Chemistry (3 decks)

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