Syllabus Edition

First teaching 2023

First exams 2025

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The Metallic Model (HL IB Chemistry)

Exam Questions

1 hour19 questions
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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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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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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