| The Alkali Metals | | Across | | | 2. | | While normally shown at the top of this group, this element is not an alkali metal. | | | 4. | | This alkali metal joins with a member of the halogen group to form table salt. | | | 6. | | This element's chemical symbol is Rb. | | | 7. | | The first member of the alkali metals. | |
| | Down | | | 1. | | This element's chemical symbol comes from the Latin word for alkali, kalium. | | | 3. | | This element, which is used in atomic clocks and photocells, melts at temperatures slightly above room temperature. | | | 5. | | The last member of this group, all isotopes of this element are radioactive. | |
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