Magnesium

Magnesium is a chemical element with the symbol Mg and atomic number 12. It is a shiny gray solid and is the eighth most abundant element in the Earth's crust. Magnesium is an essential mineral for the human body and is involved in over 300 biochemical reactions, including energy production, muscle function, and regulation of the nervous system.

Physical and Chemical Properties

• Atomic Number: 12
• Atomic Symbol: Mg
• Atomic Weight: 24.305
• State at Room Temperature: Solid
• Melting Point: 650°C (1,202°F)
• Boiling Point: 1,090°C (1,994°F)
• Density: 1.738 grams per cubic centimeter

Uses of Magnesium

Magnesium has many practical applications, including:

• Alloying agent in the production of aluminum alloys
• Component in fireworks to produce a bright white light
• Manufacturing of electronic devices and appliances
• Medical uses, including as a supplement and in the treatment of certain medical conditions

Study Guide

1. What is the atomic number of magnesium?
2. What are the physical properties of magnesium at room temperature?
3. What are some of the uses of magnesium?
4. Why is magnesium important for the human body?