CC5 Ionic Bonding Flashcards

1
Q

Why do atoms transfer electrons in ionic bonding?

A

So that they can have full outer shells

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2
Q

Explain in terms of electrons what occurs when lithium bonds with fluorine

A

One electron transferred from lithium to fluorine

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3
Q

Explain in terms of electrons what occurs when magnesium bonds with oxygen

A

Two electrons transferred from magnesium to oxygen

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4
Q

Explain in terms of electrons what occurs when beryllium bonds with oxygen (3 marks)

A

Two electrons transferred from beryllium to oxygen

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5
Q

Explain in terms of electrons what occurs when magnesium bonds with chlorine

A

One electron transferred from magnesium to two different chlorine atoms

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6
Q

Explain in terms of electrons what occurs when sodium bonds with oxygen

A

Two electrons transferred to an oxygen atom from two different sodium atoms

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7
Q

Why do sodium ions and chlorine ions form an ionic bond?

A

There is an electrostatic force of attraction between oppositely charged ions

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8
Q

Why don’t sulphur ions and oxygen ions form ionic bonds with each other?

A

Both have negative charges so would repel

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9
Q

What is the name for a substance made of billions of oppositely charged ions joined together?

A

Giant ionic lattice

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10
Q

Define giant ionic lattice

A

A huge 3D network of ions

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11
Q

State the melting points of ionic substances

A

High

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12
Q

Explain why ionic substances have high melting points.

A

Strong bonds between oppositely charged ions are hard to break

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13
Q

Will NaCl(s) conduct electricity?

A

No

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14
Q

Will NaCl (aq) conduct electricity?

A

Yes (aq stands for aqueous which means it is dissolved in water)

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15
Q

Will NaCl (l) conduct electricity?

A

Yes

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16
Q

What does molten mean?

17
Q

Explain why ionic compounds do not conduct electricity when solid

A

Because the ions are not free to move

18
Q

Explain why ionic compounds conduct electricity in solution

A

Because the ions are free to move

19
Q

Explain why ionic compounds conduct electricity when molten

A

Because the ions are free to move

20
Q

In ionic bonds, electrons are ___________________

A

Transferred

21
Q

Explain in terms of electrons what occurs when lithium bonds with chlorine

A

One electron transferred from lithium to chlorine

22
Q

What charge will an ion of lithium take?

A

1+ (one electron in the outer shell, needs to lose it)

23
Q

What charge will an ion of beryllium take?

A

2+ (two electrons in the outer shell, needs to lose them both)

24
Q

What charge will an ion of barium take?

A

2+ (group 2 so two electrons in the outer shell, needs to lose them both)

25
Q

What charge will an ion of fluorine take?

A

1- (7 electrons in the outer shell, needs to gain one)

26
Q

If something has gained electrons, what charge will it have?

27
Q

If something has lost electrons, what charge will it have?

A

Positive (because they have lost a negative!)

28
Q

What charge will an ion of oxygen take?

A

2- (6 electrons in outer shell so needs to gain two)

29
Q

What is an ion?

A

an atom which has lost or gained an electron

30
Q

How many electrons, protons and neutrons in a sodium ion Na+ ?

A

11 protons, 12 neutrons, 10 electrons

31
Q

What elements are in sodium sulfate?

A

Sodium, sulfur and oxygen

32
Q

If a compound name ends in -ide what does this show?

A

It is a molecule made of 2 elements only.

33
Q

How many electrons, protons and neutrons in an oxygen ion O2- ?

A

8 protons, 8 neutrons, 10 electrons

34
Q

How many electrons, protons and neutrons in a chloride ion Cl- ?

A

17 protons, 18 neutrons, 18 electrons

35
Q

How many electrons, protons and neutrons in a magnesium ion Mg2+ ?

A

12 protons, 12 neutrons, 10 electrons

36
Q

What elements are in potassium hydroxide?

A

potassium, oxygen and hydrogen

37
Q

What elements are in sulfuric acid?

A

hydrogen, sulfur and oxygen

38
Q

What elements are in iron carbonate

A

iron, carbon and oxygen