Chapter 2, Problem 2.30P

Interpretation Introduction

Interpretation:

The postulates of Dalton that are inconsistent with the later observations are to be determined. Also whether Dalton’s atomic model is still useful is to be explained.

Concept introduction:

The postulates of Dalton’s atomic theory are as follows:

1) Every matter is composed of tiny particles called atoms. Atoms are the smallest indivisible particles in the universe.

2) It is impossible to convert an atom of an element into an atom of another element.

3) Atoms of a particular element are identical in mass and other properties. Atoms of different elements differ in mass and properties.

4) Atoms of different elements combine in a fixed proportion to form compounds.