Across
- 5. The staircase column highlight in the Periodic Table
- 8. Number of protons and electrons
- 9. Can't be changed (rust)
Down
- 1. Can be changed back. (water, ice, water vapor)
- 2. On the right to center sides on the Periodic Table
- 3. The periodic Table of elements are all considered...
- 4. Its a pure substance, not an element but a...
- 6. On the left side on the Periodic Table
- 7. You find this in the Periodic Table
- 10. Physical combination of 2 or more substances