Chapter 21, Problem 21.2QP

Interpretation Introduction

Interpretation:

The four characteristics of metal have to be given.

Concept introduction:

Metals:

• Metal is material which is be an element, compound, or alloy and is hard.
• Metals prepared by reduction usually need further treatments to remove impurities. 
• The purification depends on how the metal will be used and there are three common purification methods.