La importancia y aplicaciones del potasio: un nutriente y elemento

Potassium, with atomic number 19 and symbol K, is derived from the word alkali. It was first isolated by Sir Humphrey Davy. Potassium is vital for human health, aiding in fluid balance and found in many foods. Deficiency can cause health issues, while excess can lead to stomach problems. In plants, potassium is crucial for growth and is replenished in soil through fertilizers. Potassium compounds are used in food additives and various industries. It reacts violently with water, producing hydrogen gas and potassium hydroxide, which can cause burns.

What is the atomic number of potassium?

• 20

• 19

• 18

• 17

Which of the following foods is NOT high in potassium?

• Chocolate

• Bananas

• Dried Apricots

• Rice

Which potassium compound is commonly used as a fertilizer?

• Potassium permanganate

• Potassium chloride

• Potassium bisulfite

• Potassium bromate

What is the main component of baking powder that involves potassium?

• Potassium nitrate

• Rochelle salt

• Potassium sulfate

• Potassium hydroxide

Why must potassium metals be kept away from water?

• They dissolve completely

• They produce a harmless gas

• They become non-reactive

• They cause a violent reaction