Across
- 2. the most electrically conductive metal on earth
- 3. A Halogen which kills germs?
- 7. sixth most abundant metal in the earth's crust
- 8. element has a atomic number of 9
- 9. Alkali Metals, Halogens, Noble Gases, etc.
Down
- 1. the lightest element in the periodic table.
- 4. fluorine, chlorine, bromine,iodine, and astatine. Group 17
- 5. Protons+?=Atomic Mass
- 6. Gas A gaseous element that is not reactive