Chapter 21, Problem 21.29SP

Interpretation Introduction

Interpretation:

Using the block of the periodic table that the metal is located in, explain why calcium would appear as a carbonate in nature while iron forms an oxide.

Concept introduction:

• d- and p-block elements are generally found in nature as metal oxides and sulfides.
• s-block elements occur as chlorides, silicates and carbonates.
• Group 3B metals occur as phosphates and platinum group metals and gold are found in an uncombined form.

To classify:Why iron occurs as an oxide while calcium forms a carbonate in nature.