Aluminum Nitride and Ionic Charges

The video tutorial explains how to write the chemical formula for aluminum nitride. It begins by identifying the symbols for aluminum and nitride, emphasizing the significance of the 'ide' suffix. The tutorial then discusses the ionic charges of aluminum and nitrogen, referencing the periodic table to determine these charges. It highlights the need for the charges to balance to form a neutral compound, leading to the correct formula: AlN. The video concludes with a confirmation of the formula and a brief sign-off by Dr. B.

What is the symbol for aluminum when writing the formula for aluminum nitride?

• Ni

• N

• Al

• AlN

What does the suffix '-ide' indicate in the context of chemical compounds?

• A metal

• A polyatomic ion

• A single element

• A mixture

What is the ionic charge of aluminum as found in the periodic table?

• 1+

• 2+

• 3+

• 4+

Which group in the periodic table does aluminum belong to?

• Group 17

• Group 13

• Group 1

• Group 18

What is the ionic charge of nitrogen when forming aluminum nitride?

• 3-

• 4-

• 2-

• 1-

What is the correct formula for aluminum nitride?

• Al3N2

• AlN

• AlN3

• Al2N3