chemistry

structure and properties 

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  • Created by: MARLABI
  • Created on: 28-03-18 11:03
what are compounds?
substances in which are 2 or more elements are chemically combined
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what are ionic bonds formed from?
Metals and non Metals
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what do metals lose and form?
They lose electrons and form positive ions
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non metals gain x and form?
They gain electrons and form negative ions?
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what structure do ionic compounds have?
giant lattice structure
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Do ionic compounds have a high melting point or low melting point and why?
They have a high melting point as the electrostatic attraction is strong
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Do ionic compounds conduct as a solid?
No as they are not free to move
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ionic compounds conduc electricity when molten or in solution why?
ions are free to move and carry the current
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Metals are layers of positive ions surrounded by?
Free delocalised electrons
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Why can ions slide over each other?
so that the metals can be hammered into shape
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What can metals conduct?
Electricity and heat
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what are alloys usually made from
2 or more metals the different size atoms distort the layers stopping them from rolling over each other making the alloy stronger
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Other cards in this set

Card 2

Front

what are ionic bonds formed from?

Back

Metals and non Metals

Card 3

Front

what do metals lose and form?

Back

Preview of the front of card 3

Card 4

Front

non metals gain x and form?

Back

Preview of the front of card 4

Card 5

Front

what structure do ionic compounds have?

Back

Preview of the front of card 5
View more cards

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