Metals!

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Name 3 metal properties
shiny, ductile and malleable
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Why are metals solid at room temp.?
Solids are arranged in a regular arrangement and have strong attractions
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Why are metals good conductors of electricity?
Delocalised electrons, have gained kinetic energy, so it's free for them to move
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How are metals malleable?
They are strong and can be hammered into shape. Their electrons can slide over the layers.
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Why do metals have high bp and mp?
Because they have a strong electrostatic force of attraction, where the delocalised electrons from the outer shells forms a sea of electrons.
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Why are metals strong?
Their layers can slide over easily, they have delocalised electrons are free to move and they a strong attraction
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What metal isn't a solid at room temp.?
Mercury
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What is metallic bonding?
The attraction between oppositely charged particles
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How are alloys different to pure metals?
they have an irregular pattern, can't slide over layers,different metals formed together(distorted)
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Are alkali metals reactive?
Yes
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What substance is used to stop the alkali metals to react with oxygen and moisture in the air?
oil
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What is it called when an alkali reacts with water?
An alkaline solution
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What is the reactivity of alkali metals?
It increases
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Which alkali metal is the most reactive?
Caesium
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What other substance does it form when it reacts with water?
Hydrogen
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Which metal form a lilac colour?
Potassium
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What group is the halogens in?
Group 7
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What is their structure and bonding?
They are covalent bonds and they are diatomic molecules
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Name the first three colours of an halogen
Fl: pale colour Cl: pale yellow Br: brown
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Which 2 halogens are gases?
Fl + Cl
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What is their reactivity trend?
They decrease
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Other cards in this set

Card 2

Front

Why are metals solid at room temp.?

Back

Solids are arranged in a regular arrangement and have strong attractions

Card 3

Front

Why are metals good conductors of electricity?

Back

Preview of the front of card 3

Card 4

Front

How are metals malleable?

Back

Preview of the front of card 4

Card 5

Front

Why do metals have high bp and mp?

Back

Preview of the front of card 5
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