Lithium and Bromide Compounds

The video tutorial explains how to write the formula for lithium bromide. It begins by identifying lithium on the periodic table and recognizing bromide as a polyatomic ion with a 1- charge. The tutorial details the process of balancing charges to form an ionic compound, resulting in the formula LiBrO2. It also covers how to name compounds from given formulas, emphasizing the importance of understanding polyatomic ions.

What is the element symbol for lithium on the periodic table?

• Li

• Lt

• L

• Lm

What does the suffix 'ite' in bromide indicate about its nature?

• It is a metal

• It is a polyatomic ion

• It is a noble gas

• It is a transition metal

What is the charge of the bromide ion?

• 1-

• 2+

• 2-

• 1+

How do the charges of lithium and bromide ions combine in lithium bromide?

• 1+ and 1-

• 1+ and 1+

• 1- and 1-

• 2+ and 1-

What is the net charge of lithium bromide?

• 2-

• 0

• 1-

• 1+

If given the formula LiBrO2, what would be the name of the compound?

• Lithium bromide oxide

• Lithium bromate

• Lithium bromide

• Lithium oxide

What should you do if you don't recognize a polyatomic ion in a compound's formula?

• Ignore it

• Guess its name

• Look it up in a table of polyatomic ions

• Assume it's a metal