Potassium and Fluorine Compounds

The video tutorial explains how to write the chemical formula for potassium fluoride. It begins by identifying potassium and fluorine on the periodic table, noting their symbols as K and F, respectively. The tutorial then discusses the importance of balancing charges, highlighting that potassium has a +1 charge and fluorine has a -1 charge. These charges balance each other out, resulting in a net charge of zero. The correct chemical formula for potassium fluoride is thus determined to be KF.

Which element is represented by the symbol 'K' in the periodic table?

• Fluorine

• Calcium

• Potassium

• Krypton

What is the charge of potassium when it forms an ion?

• +1

• -1

• +2

• 0

How does the charge of fluorine compare to that of potassium?

• Fluorine has a +1 charge

• Fluorine has no charge

• Fluorine has a -1 charge

• Fluorine has a +2 charge

What is the net charge of the compound formed by potassium and fluorine?

• -1

• 0

• +2

• +1

What is the correct chemical formula for potassium fluoride?

• KF

• K2F2

• K2F

• KF2