Directions: The words in each group below are related. Using all the words in the group, write a sentence that shows how the words are related. Example: compound, properties, elements

The properties of a compound differ from the properties of the elements that make up the compound.

1. hydrate, compound, water

2. oxidation number, element, electrons

3. zero, oxidation numbers, noble gases

4. oxidation number, Roman numeral, element