Across
- 1. Has an atomic number of 83
- 3. vertical column of elements (there are 18)
- 4. Transition metal used in wires and pipes
- 6. transition metal that is liquid at room temp (dangerous)
- 9. has a symbol of In
- 10. Noble gas that shares a period with Sodium
- 11. period 2 and group 16
- 12. Radioactive element that has an atomic number of 92
- 14. elements in group 17
Down
- 2. Alkali Earth metal that has 12 protons
- 5. horizontal row of elements (there are 7)
- 7. Alkali metal that is in period 6.
- 8. the smallest element
- 11. symbol for osmium
- 13. most of the elements are classified as some type of