Ionic Compounds and Their Properties

The video tutorial explains how to determine the number of ions in barium phosphate (Ba3(PO4)2). It begins by identifying barium as a metal and phosphate as a group of non-metals, forming an ionic compound. The tutorial discusses the ionic charges of barium (2+) and phosphate (3-), and how these charges balance to form a neutral compound. It then details the process of writing the ions, resulting in three barium ions and two phosphate ions, totaling five ions in the compound.

What type of compound is Ba3(PO4)2?

• Molecular compound

• Metallic compound

• Ionic compound

• Covalent compound

What is the charge of a barium ion in Ba3(PO4)2?

• 2+

• 0

• 1+

• 3+

What is the charge of the phosphate ion in Ba3(PO4)2?

• 3-

• 2-

• 4-

• 1-

How many barium ions are present in Ba3(PO4)2?

• 2

• 1

• 3

• 4

How many phosphate ions are present in Ba3(PO4)2?

• 2

• 4

• 1

• 3

What is the total number of ions in Ba3(PO4)2?

• 5

• 4

• 3

• 6