Topic 2 = Bonding Flashcards

1
Q

Ionic bonding is between?

A

A metal and non metal

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2
Q

Covalent bonding is between?

A

non-metal and non-metal

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3
Q

metallic bonding is between?

A

metal and metal

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4
Q

Properties of ionic bonding

A
  • Giant structure
  • high melting and boiling point
  • dissovles in water
  • conducts when molten
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5
Q

properties of giant covalent bonding

A
  • High melting and boiling point
  • does not dissolve in water
  • doesn’t conduct electricity except graphite
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6
Q

properties of simple molecular covalent bonding

A
  • low melting and boiling point
  • sometimes dissolves in water
  • does not conduct electricity
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7
Q

properties of metallic bonding

A
  • Giant structure
  • high melting and boiling point
  • doesn’t dissolve in water
  • does conduct
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8
Q

Solid Diagram

A
  • Very close together in a fixed position

- Vibrates

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9
Q

Liquid Diagram

A
  • quite close together

- move past each other

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10
Q

Gas Diagram

A
  • No fixed shape or volume
  • Move randomly in all directions
  • can be compressed
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11
Q

Properties of Diamond

A
  • 4 covalent bonds
  • very hard
  • very high melting point
  • does not conduct electricity
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12
Q

Properties of Graphite

A
  • 3 covalent bonds
  • soft-has layers
  • very high melting point
  • conducts electricity
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13
Q

Why does Diamond not conduct electricity?

A

The electrons are in a fixed place so cant carry electrical charge.

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14
Q

Why does graphite conduct electricity?

A

Only 3 covalent bonds so theres a free bond.so the delocalised electrons are in the layers.so it can carry charge.

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15
Q

Properties of Fullerenes

A
  • High tensile strength
  • Good conductor of electricity
  • Unreactive
  • Large surface area to volume ratio
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16
Q

Uses of fullerenes

A
  • computer screens
  • drug delievery in bodies
  • lubricants
17
Q

Graphene

A

Graphite-1 atom thick

  • low density
  • electrical conductor
  • flexible
18
Q

Advantages of nanoparticles

A

Medicine, Cosmetics, Catalysts

19
Q

Disadvantages of nanoparticles

A

may be risks, more tests needed