Sodium and Azide Concepts

The video tutorial explains how to write the formula for sodium azide. It begins by identifying sodium from the periodic table and recognizing azide as a polyatomic ion with a charge of one minus. The tutorial discusses the ionic nature of the compound, highlighting the charges of sodium and azide ions, and how they balance to form the compound NaN3. The video concludes with a summary of the formula and a thank you from Dr. B.

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

• Si

• N

• S

• Na

Which of the following best describes azide?

• A metal

• A noble gas

• A polyatomic ion

• A single element

What is the ionic charge of the azide ion?

• 1+

• 2-

• 1-

• 0

In which group of the periodic table is sodium found?

• Group 2

• Group 18

• Group 1

• Group 17

What is the correct formula for sodium azide?

• NaN3

• NaN

• Na3N

• Na2N3