Aluminum Phosphide and Ionic Charges

The video tutorial explains how to write the formula for aluminum phosphide. It begins by identifying the element symbols for aluminum and phosphorus, noting that aluminum is a metal and phosphorus is a non-metal, forming an ionic compound. The tutorial then discusses the charges of these elements, with aluminum having a 3+ charge and phosphorus a 3- charge. The charges must balance to form a neutral compound, resulting in the formula AlP for aluminum phosphide. The video concludes with a summary of the process.

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

• P

• Al

• AlP

• Al3+

What does the suffix '-ide' indicate in the term 'phosphide'?

• A polyatomic ion

• A single element

• A metal

• A compound

Which group on the periodic table is aluminum found in?

• Group 18

• Group 17

• Group 13

• Group 1

What is the charge of phosphorus when forming aluminum phosphide?

• 3+

• 2-

• 3-

• 1-

What is the charge of aluminum in aluminum phosphide?

• 3+

• 4+

• 1+

• 2+

Why must the charges in aluminum phosphide add up to zero?

• To ensure it is a neutral compound

• To balance the equation

• To create a polyatomic ion

• To form a stable compound

What is the correct formula for aluminum phosphide?

• AlP3

• Al2P3

• Al3P

• AlP