Ionic Compounds and Polyatomic Ions

The video tutorial explains how to write the formula for sodium chlorate. It begins by identifying sodium on the periodic table and recognizing chlorate as a polyatomic ion. The tutorial describes the nature of ionic compounds and the importance of balancing charges to form a neutral compound. It concludes with the final formula for sodium chlorate, NaClO3, and a brief closing statement.

What is the symbol for sodium as found on the periodic table?

• Na

• S

• K

• Cl

Which of the following is a polyatomic ion?

• Cl

• O2

• Na

• ClO3-

What type of compound is formed when a metal and a group of nonmetals combine?

• Molecular

• Metallic

• Ionic

• Covalent

What is the charge of sodium in an ionic compound?

• 1-

• 2+

• 1+

• 0

Why do the charges in sodium chlorate need to add up to zero?

• To make it a metallic compound

• To make it a covalent compound

• To ensure it is a molecular compound

• To ensure it is a neutral compound

What is the final formula for sodium chlorate?

• NaCl

• NaClO3

• NaClO2

• NaClO