Chapter 21, Problem 21.23SP

Interpretation Introduction

Interpretation:

The three metals that are found in uncombined form in nature has to be listed.

Concept introduction:

Metals and ores:

Metal is defined as chemical element with certain physical and chemical properties.  Metals are effective conductor of electricity and heat, shiny, ductile, malleable, lustrous, and elastic and easily forms bonds and cations.  Ore is defined as minerals and metals are extracted cheaply from ores.  Example: ${\text{Al}}_{\text{2}}{\text{O}}_{\text{3}}{\text{2H}}_{\text{2}}\text{O}$ (bauxite) is the ore of aluminum.