Iron: An Introduction

Iron is a chemical element with the symbol Fe (from Latin: ferrum) and atomic number 26. It is a metal in the first transition series. It is the most common element on Earth by mass, forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust.

Physical and Chemical Properties

Iron is a silver-white or gray metal that is malleable and ductile. It is a good conductor of heat and electricity. Iron is reactive and readily forms oxides, especially in moist environments. It rusts easily when exposed to air and moisture.

Uses of Iron

Iron has been used by humans for thousands of years. Its most important use is in the production of steel, an alloy of iron and carbon, which is widely used in construction and other applications. Iron is also used in the production of various other alloys, including cast iron and wrought iron. It is an essential element in the human diet and is used in the production of various iron-based compounds.

Study Guide

1. What is the chemical symbol for iron?

The chemical symbol for iron is Fe.

2. What is the atomic number of iron?

The atomic number of iron is 26.

3. What are the physical properties of iron?

Iron is a silver-white or gray metal that is malleable and ductile. It is a good conductor of heat and electricity.

4. What happens to iron when it is exposed to air and moisture?

Iron rusts easily when exposed to air and moisture.

5. What is the most common use of iron?

The most important use of iron is in the production of steel, an alloy of iron and carbon, which is widely used in construction and other applications.