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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Syllabus Edition
First teaching 2023
First exams 2025
|
The Metallic Model (HL IB Chemistry)
Exam Questions
1 hour19 questions21 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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31 mark
Which statement about metals is correct?
The melting point of vanadium is higher than that of calcium
Scandium is a transition metal
Transition metals are good conductors of electricity due to the incomplete d-subshell
The electronic configuration of Zn2+ is 1s22s22p63s23p64s23d10
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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 less 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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31 mark
Which is the correct order of increasing conductivity?
Al < Mg < Na < Ag
Na < Mg < Al < Ag
Mg < Al < Na < Ag
Ag < Na < Mg < Ag
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