Ionic Charges and Aluminum Bromide

The video tutorial explains how to write the formula for aluminum bromide using the periodic table. It identifies aluminum as a metal and bromine as a non-metal, forming an ionic compound. The tutorial covers the ionic charges of aluminum and bromine, and demonstrates the crisscross method to achieve a neutral compound. The formula AlBr3 is verified by ensuring the net charge is zero. The video concludes with a summary and thanks from Dr. V.

Which elements are involved in forming aluminum bromide?

• Aluminum and Fluorine

• Aluminum and Iodine

• Aluminum and Bromine

• Aluminum and Chlorine

What is the ionic charge of aluminum?

• 1+

• 2+

• 4+

• 3+

What is the ionic charge of bromine?

• 4-

• 3-

• 2-

• 1-

Why do the charges in aluminum bromide need to add up to zero?

• To make the compound basic

• To make the compound acidic

• To make the compound reactive

• To ensure the compound is neutral

What method is used to balance the charges in aluminum bromide?

• Cross-multiplication method

• Substitution method

• Addition method

• Crisscross method

What is the correct formula for aluminum bromide?

• AlBr2

• AlBr

• AlBr3

• Al2Br3

How many bromine atoms are needed to balance the charge of one aluminum atom?

• Two

• Four

• One

• Three

What is the net charge of the aluminum bromide compound?

• 3+

• 0

• 1-

• 1+