Lithium and Bromine Chemistry Concepts

This video tutorial explains how to determine the oxidation numbers for lithium bromide (LiBr). It begins by identifying LiBr as a neutral compound, meaning the oxidation numbers must sum to zero. Lithium, found in group 1 of the periodic table, has an oxidation number of +1. Bromine, in group 17, typically has an oxidation number of -1. The video concludes by summarizing these oxidation numbers and confirming the neutrality of the compound.

What is the overall charge of the compound LiBr?

• Positive

• Negative

• Neutral

• Variable

Which group in the periodic table does lithium belong to?

• Group 18

• Group 17

• Group 2

• Group 1

What is the typical oxidation number for lithium?

• +2

• +1

• 0

• -1

Bromine is usually found in which group of the periodic table?

• Group 18

• Group 17

• Group 2

• Group 1

What is the oxidation number of bromine in LiBr?

• +2

• 0

• -1

• +1