IB Chemistry HL 2.4.2 Bonding Triangle Questions

Use exam questions to compare ionic character, connect bonding position to conductivity and evaluate mixed-bonding limits.

Exam points

Analyse electronegativity data to compare ionic character across several compounds.
Link bond type and ion mobility to conductivity in molten or solid materials.
Evaluate the limits of a simple electronegativity classification for compounds with mixed character.

Learn this topic

Study 2.4.2—Bonding triangle conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

[Maximum number: 2]

A sample of bromine has the following composition by mass:

\begin{array}{cc} { }^{79} \mathrm{Br}: & 50.75 \% \\ { }^{81} \mathrm{Br}: & 49.25 \% \end{array}

Deduce, showing your working, the type of bonding and percentage covalent character in calcium bromide, $\mathrm{CaBr}_{2}$ . Use sections 9 and 17 of the data booklet.

All question bank results loaded

Learn this topic

IB Chemistry HL 2.4.2 Bonding Triangle Questions question 1