IB Chemistry SL 2.3.2 Bond Strength Questions

Use exam questions to rank metallic-bond strength from electron count, charge density and atomic radius, then link it to properties.

Syllabus
First assessment 2025
Course
Chemistry SL
Level
SL

Exam points

  • Identify factors that increase or decrease metallic-bond strength across metals, including delocalized-electron count and charge density.
  • Use ionic/atomic radius and cation charge-density evidence to rank metallic-bond strength.
  • Link metallic-bond strength to melting point, hardness or density in the stated pure-metal comparison.

IB Chemistry SL 2.3.2 Bond Strength Questions 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

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