Chapter 5, Problem 6E

Interpretation Introduction

Interpretation:

The periodic trend, according to which the elements are arranged, after Moseley’s discovery in $1913$ is to be stated.

Concept introduction:

Moseley bombarded atomic nuclei with high energy radiation and discovered that nuclear charge increased by $1$ for each element in the periodic table. Moseley correctly concluded that elements are to be arranged according to increasing nuclear charge rather than increasing atomic mass.