Phosphate Ion Properties and Characteristics

The video tutorial explains the composition and charge of the phosphate ion (PO4^3-). It details the presence of one phosphorus atom and four oxygen atoms, totaling five atoms. The 3- charge indicates three extra electrons, making it an anion. The charge affects the ion's properties but not the atom count. Dr. B concludes with a recap of the atom count in the phosphate ion.

What is the total ionic charge of the phosphate ion?

• 4 minus

• 1 minus

• 2 minus

• 3 minus

In which of the following compounds is the phosphate ion commonly found?

• Calcium carbonate

• Magnesium sulfate

• Potassium phosphate

• Sodium chloride

How many phosphorus atoms are present in the phosphate ion?

• Four

• Three

• Two

• One

How many oxygen atoms are present in the phosphate ion?

• Two

• Three

• Five

• Four

What does the 3 minus charge indicate about the phosphate ion?

• It has three extra protons.

• It has three extra electrons.

• It has three fewer electrons.

• It has three fewer protons.

What is the total number of atoms in the phosphate ion?

• Four

• Seven

• Five

• Six