Sodium

Sodium is a chemical element with the symbol Na and atomic number 11. It is a soft, silvery-white, highly reactive metal. Sodium is an essential element for all life forms and is found in many compounds, particularly salt.

Properties of Sodium:

• Atomic Number: 11
• Symbol: Na
• Atomic Mass: 22.989769 u
• Phase at Room Temperature: Solid
• Classification: Alkali Metal
• Boiling Point: 883°C
• Melting Point: 97.79°C

Uses of Sodium:

Sodium has a wide range of uses, including:

1. Production of Sodium Hydroxide (NaOH)
2. Manufacturing of soaps and detergents
3. Preservation of food through pickling
4. Creating artificial lighting in street lamps and television tubes
5. As a coolant in nuclear reactors

Health Implications:

Sodium is an essential nutrient for the human body, but excessive intake can lead to health issues such as high blood pressure and heart disease. It is important to consume sodium in moderation.

Study Guide:

To study sodium effectively, focus on the following key points:

1. Understand the atomic structure of sodium, including its atomic number and mass.
2. Learn about the properties of sodium at room temperature.
3. Explore the various uses of sodium in industry and everyday life.
4. Understand the health implications of sodium and the importance of balanced intake.
5. Practice identifying sodium and its compounds in chemical reactions.

Remember to review and reinforce your understanding through practice problems and hands-on experiments.