Chemistry- bonding structures and properties

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Name physical properties of a metal
Conducts heat; conducts electricity; high melting point; high boiling point' malleable' ductile; shiny
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Name physical properties of a non-metal
Doesn't conduct heat' doesn't conduct electricity' low melting point; low boiling point' non-malleable; brittle; dull
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What are the properties of all materials determined by?
The types of atom present; types of bonding between the atoms how they are packed together
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How does a metal become stronger?
By having more free electrons and more protons the ions have
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Another word for free electrons?
Delocalised
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How do metals conduct heat and electricity?
By having the free/delocalised electrons move around allowing the metal to conduct heat and electricity
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What happens when a metal has more free electrons?
The metal becomes better at conducting heat/electricity
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How are metals malleable and ductile?
Because the free electrons allow the metal atoms to slide over eachother
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Why do metals have high melting and boiling points?
The metallic bonds are strong so a lot of energy is needed to break them
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What happens as the number of electrons increase?
The boiling point and melting point also increase
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Where on the periodic table has the lowest melting points and highest melting points?
Lowest is on the left side and highest is on the right side.
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Why do the boiling and melting point increase
The attraction of the free electrons and positive ions increase
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What happens when a chemical reaction takes place?
New bonds are formed
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How do ionic compounds form?
By the transfer of electrons from a metal to a non-metal
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What are changed particles called?
Ions
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What is covalent bonding?
When 2 or more non-metals bond
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What happens when non-metals bond?
The atoms share electrons
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Other cards in this set

Card 2

Front

Name physical properties of a non-metal

Back

Doesn't conduct heat' doesn't conduct electricity' low melting point; low boiling point' non-malleable; brittle; dull

Card 3

Front

What are the properties of all materials determined by?

Back

Preview of the front of card 3

Card 4

Front

How does a metal become stronger?

Back

Preview of the front of card 4

Card 5

Front

Another word for free electrons?

Back

Preview of the front of card 5
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