IB Chemistry SL 2.3.2 Metallic Bond Strength

Practise comparing metallic-bond strength through the charge density of metal ions and the number of delocalised electrons. Higher charge and smaller radius strengthen…

Syllabus
First assessment 2025
Objective
2.3.2
Level
SL

Exam points

  • rank metals by metallic-bond strength using cation charge and ionic radius
  • include the number of delocalised valence electrons when comparing metals across a period
  • connect weaker attraction from increasing radius with a falling melting-point trend

2.3.2—Bond strength question 1

[Maximum number: 1]

Which series shows the correct order of metallic bond strength from strongest to weakest?

A

Na>K>Rb>Mg

B

Mg>Rb>K>Na

C

Rb>K>Na>Mg

D

Mg>Na>K>Rb

All question bank results loaded