Chapter 12, Problem 61E

Interpretation Introduction

Interpretation:

An explanation as to why ${\text{BF}}_{\text{3}}$ is a molecular compound while ${\text{AlF}}_{\text{3}}$ is an ionic compound is to be stated.

Concept introduction:

The type of compounds formed the different combination of elements depends upon the nature of the element and the electronegativity difference among the elements.

The metals and non-metals or metalloids are most likely to form ionic compounds while non-metals and non-metals or metalloids combinations are generally molecular compounds.