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IB Chemistry HL 2.3 The Metallic Model Questions

Practise IB Chemistry HL 2.3 with evidence-led questions on water, atmospheric systems and environmental chemistry.

Syllabus
First assessment 2025
Course
Chemistry HL
Level
HL

Exam points

  • Explain metallic bonding using delocalized electrons and a positive-ion lattice, then relate it to conductivity and malleability.
  • Compare metallic bond strength using ion charge, radius and charge density, evaluating trends against melting-point evidence.
  • Explain how transition-element metallic bonding and d-electron participation affect physical properties such as melting point.

Covered syllabus points

2.3.1—Metallic bonding2.3.2—Bond strength2.3.3 (HL)—Transition elements

Question 1

[Maximum number: 3]

Titanium and vanadium are consecutive elements in the first transition metal series.

Question (a)

(a)

Describe the bonding in metals.

[ 2 ]

Question (b)

(b)

Suggest why the melting point of vanadium is higher than that of titanium.

[ 1 ]

Question 2

[Maximum number: 1]

Which combination causes the strength of metallic bonding to increase?

Table for Question 2 — IB Chemistry HL
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