Potassium

Potassium is a chemical element with the symbol K and atomic number 19. It is a soft, silvery-white metal that reacts violently with water and is found in many minerals. Potassium is essential for all living organisms and is found in high concentrations in the human body.

Properties of Potassium

• Atomic number: 19
• Symbol: K
• Atomic mass: 39.10
• Physical state at room temperature: Solid
• Color: Silvery-white
• Boiling point: 759°C (1,398°F)
• Melting point: 63.38°C (146.08°F)

Uses of Potassium

Potassium has several important uses, including:

• As a nutrient for plants in the form of potassium compounds such as potassium chloride and potassium nitrate.
• In the production of soap and glass.
• In various industrial processes, including the production of fertilizers, explosives, and batteries.
• In the human body, where it plays a crucial role in nerve function, muscle control, and maintaining fluid balance.

Study Guide

Here are some key points to remember about potassium:

1. Potassium is a chemical element with the symbol K and atomic number 19.
2. It is a soft, silvery-white metal that reacts violently with water.
3. Potassium is essential for the proper functioning of living organisms, including plants and animals.
4. It is found in high concentrations in the human body and plays a crucial role in nerve function, muscle control, and maintaining fluid balance.
5. Potassium is used in various industrial processes, as a nutrient for plants, and in the production of soap and glass.

Remember to always handle potassium with care due to its reactive nature.