Sodium Phosphate and Ionic Charges

The video tutorial explains the composition of sodium phosphate (Na3PO4), focusing on the number of ions present. Sodium, a group one element, has a +1 charge, and there are three sodium ions in the compound. The phosphate ion (PO4) has a -3 charge. The video concludes that Na3PO4 consists of three sodium ions and one phosphate ion, totaling four ions.

What is the chemical formula for sodium phosphate?

• NaPO4

• Na2PO4

• Na3PO4

• Na3P

Which group on the periodic table does sodium belong to?

• Group 3

• Group 2

• Group 1

• Group 4

What is the ionic charge of a sodium ion?

• 1-

• 2-

• 2+

• 1+

How many sodium ions are present in sodium phosphate?

• Three

• Four

• One

• Two

What is the charge of the phosphate ion in sodium phosphate?

• 4-

• 3-

• 2-

• 1-

How many total ions are present in sodium phosphate?

• Two

• Four

• Three

• Five