metals and non metals Flashcards

1
Q

define luster

A

shiny when polished able to reflect light from its surface

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2
Q

define malleable

A

able to be beaten or hammered or pressed in to a sheet

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3
Q

define ductile

A

able to be drawn in to a wire

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4
Q

describe the difference between metals and non metals in terms of conductivity

A

metals are a good conductor of electricity in solid or liquid state

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5
Q

describe the difference between metals and non metals in terms of ductility

A

metals = ductile
non metals = not ductile

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6
Q

describe the difference between metals and non metals in terms of
appearance

A

metals =lustrous
non metals = dull

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7
Q

describe the difference between metals and non metals in terms of melting and boiling points

A

metal= high M&B points
non metals= low M&B points

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8
Q

describe the difference between metals and non metals in terms of conductors

A

metals= good conductor
non metals= poor conductor used as insulator

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9
Q

describe the structure of metal atoms

A

metal atoms are pact together in a lattice structure the valance electrons are able to move freely (metallic bonding )

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10
Q

why do metals conduct electricity

A

because electrons are free to move

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11
Q

describe what happens when a metal structure is hit with a hammer or being drawn into a wire

A

the cations can move past on another to form a new shape or drawn in to a wire but don’t break the metallic bonds because the forces holding the lattice together are non directional

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12
Q

a word to describe non metals

A

brittle

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13
Q

metal + acid =?

A

metal + acid—> salt + Hydrogen

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14
Q

metal + oxygen =?

A

metal + oxygen –> metal oxide

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15
Q

metal + water =?

A

metal + –> metal hydroxide + hydrogen

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16
Q

describe the activity series

A

the activity series aranges metals in order of reactivity. the most reactive at the left

17
Q

define allotrope

A

different forms of the same element where atoms combine in different ways

18
Q

define alloy

A

a mixture of two or more elements in a solid, the main component being a metal to produce desirable characteristics

19
Q

define spectator ion

A

an ion that is present in the reaction but not used in the reaction and dosen’t change

20
Q

define displacement reaction

A