Chapter 21, Problem 41PS

Interpretation Introduction

Interpretation: To predict the abundance of aluminium in earth’s crust.

Concept introduction:

Earth’s crust is the outermost solid shell of planet earth. Almost $99$ percent of earth’s crust is made up of just $10$ elements. These $10$ elements are oxygen, silicon, aluminium, iron, calcium, sodium, magnesium, potassium, titanium, and hydrogen.

Most of the elements in earth’s crust are found in the form of rocks and minerals.