11 mark
“Electrostatic attraction between cations and delocalised electrons”
Which of the following types of bonds does the statement best describe?
hydrogen
ionic
dipole-dipole
metallic
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The Metallic Model (DP IB Chemistry: SL): Exam Questions
1 hour17 questions
21 mark
Which of the following materials only contain one type of bonding?
graphite
brass
ice
iodine crystals
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31 mark
Substance L has the following properties.
Melting Point | Electrical Conductivity | |
|---|---|---|
660 oC | When solid | When molten |
Yes | Yes | |
What is likely to be the identity of substance L?
Graphite
Li2O
NaCl
Al
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41 mark
What is the correct order of decreasing melting points for Group 1 metals?
Na > K > Rb > Cs
Na > K > Cs > Rb
Cs > Rb > K > Na
K > Na > Rb > Cs
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11 mark
Which of the following metals would have the highest melting point?
Na
Mg
Al
K
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21 mark
Which of the following species has the highest melting point?
1s2 2s2 2p6 3s1
1s2 2s2 2p6 3s2
1s2 2s2 2p6 3s2 3p1
1s2 2s2 2p6 3s2 3p2
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11 mark
Which of the following metals will have the greatest ability to conduct electricity?
Li
Mg
Na
Al
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21 mark
Sodium and magnesium are both Period 3 elements.
Compared to sodium, why is magnesium more reactive?
| Magnesium has a smaller atomic radius | Magnesium has a larger nuclear charge | Stronger nuclear attraction for electrons |
A | ✓ | ✓ | ✓ |
B | ✓ | ⨯ | ⨯ |
C | ⨯ | ⨯ | ✓ |
D | ✓ | ✓ | ⨯ |
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