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iGCSE Chemistry > 3.3 Ionic Bonding > Flashcards

3.3 Ionic Bonding Flashcards

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1
Q

How do metal ions form?

A

metals lose their outer-shell electrons to get a full outer-shell

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2
Q

What charge are metal ions?

A

positive - full outer-shell

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3
Q

What is reduction?

A

gain in electrons

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4
Q

What is oxidation?

A

loss of electrons

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5
Q

Why is an ion more stable?

A

full outer-shell

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6
Q

How do non-metal ions form?

A

gain electrons to get a full outer-shell

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7
Q

What happens when an ionic compound forms?

A

metal loses its electrons and non metal gains them

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8
Q

What does an ionic compound form between?

A

metal and non-metal

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9
Q

What is the charge in an ionic compound?

A

neutral

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10
Q

What is the charge of elements in Group 1?

A

+1

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11
Q

What is the charge of elements in Group 2?

A

+2

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12
Q

What is the charge of elements in Group 3?

A

+3

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13
Q

What is the charge of elements in Group 4?

A

shares electrons!!

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14
Q

What is the charge of elements in Group 5?

A

-3

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15
Q

What is the charge of elements in Group 6?

A

-2

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16
Q

What is the charge of elements in Group 7?

A

-1

17
Q

What is the charge of elements in Group 0?

A

nothing

18
Q

What is the ionic structure?

A

arranged in giant lattice
alternating charge of ions

19
Q

Define ionic bonding

A

electrostatic attraction between oppositely charged ions

20
Q

Why is ionic bonding so strong?

A

giant lattice - lots of very strong bonds

21
Q

Why do ionic compounds have high melting points?

A
  • very strong
  • giant lattice : lots of bonds
  • lots of energy needed to break
22
Q

What also makes some ionic compounds have high melting points?

A

if the ions have higher charges
- attraction is even stronger
- more energy needed

23
Q

Why can’t ionic compounds conduct electricity when solid?

A

ions cannot move freely
in fixed position
cannot carry charge

24
Q

Why can ionic compounds conduct electricity when liquid?

A

ions can move freely
not in fixed position
can carry charge

iGCSE Chemistry (17 decks)

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