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Science- Chemistry 🦠 > Chemical Bonding > Flashcards

Chemical Bonding Flashcards

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1
Q

Ionic bonding

A

Between a non-metal and a metal

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2
Q

Covalent bonding

A

Between a non-metal and a non-metal

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3
Q

Metallic bonding?

A

Within metals ONLY (pure alloys)

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4
Q

What are ions?

A

Charged particles

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5
Q

Ionic bonding has what?

A

A full outer shell

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6
Q

Properties of ionic substances?

A
  • brittle
  • can’t conduct electricity
  • soluble in water
  • height melting point
  • doesn’t conduct in a solid, but melted conducts
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7
Q

Simple covalent bonds?

7.

A

1 . Lots of energy required

  1. Doesn’t conduct
  2. Bonding together
  3. None free
  4. Low melting point & boiling point
  5. No charge
  6. Soft and brittle as a solid
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8
Q

Giant covalent structures?

4

A
  1. Solids: height melting point
  2. All of the atoms are bonded by strong covalent bonds
  3. Melt or boil
  4. Diamond and graphite
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9
Q

Diamond

6

A
  1. Carbon atoms
  2. Tetrahedral arrangement
  3. 4 covalent bonds
  4. Hard, strong
  5. Doesn’t conduct electricity
  6. None spare, carbon in all bonds
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10
Q

Graphite properties?

7

A
  1. Hexagonal
  2. Arranged in sheets that slid over each other
  3. Intermolecular forces between sheets (weak)
  4. Thinnest, malleable,2d, hard
  5. Does conduct
  6. 3 other atoms
  7. Some charged particles, delocalised electrons
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11
Q

Both diamond and graphite properties?

5

A
  1. High melting points
  2. High boiling points
  3. Both made of carbon
  4. Giant structures
  5. Covalent bonds
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12
Q

Metallic bonding properties?

A
  1. High melting and boiling points
  2. Arranged In Regular pattern
  3. Give up outer shell electrons to share
  4. Positive ions are formed
  5. Free electrons moving between ions; it’s the thing that helps conduct everything and holds together
  6. 1 electron per atom
  7. Solid metal
  8. Sea of ‘ delocalised’ electrons
  9. Lattice of ions
  10. No intermolecular forces
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13
Q

Alloys properties?

A

Two or more different metals
Different sized atoms
Can’t slide, not in layers
Harder, stronger

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14
Q

Malleable:

4

A
  1. Bend or hammer into shape, won’t break
  2. Strong
  3. Layers can slide over each other without breaking
  4. All same elements, atoms same size
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15
Q

Fullerene?

A
  • 60 carbon atoms In a ball
  • 12 protons each
  • 3 bonds for each carbon
  • 1 free electron
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16
Q

How many times is graphemes harder than steel?

A

300 times

17
Q

Nano tube?

A

Rolled graphene

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