The Periodic Table
Across
- 4. Mendeleev ordered the his Periodic Table by increasing atomic _____________ .
- 7. The Modern Periodic Table is ordered by increasing atomic __________ .
- 8. How does the reactivity change as you move down the alkali metals.
- 10. Most metals are this state of matter at room temperature.
- 11. A column of the Periodic Table.
- 12. The lowest mass halogen.
- 14. The only metal that is a liquid at room temperature.
- 16. Metals bend and can be shaped without breaking. They are _________.
- 18. This element is in Period 3 and Group 13.
- 19. Non-Metals break under stress. They are _________.
- 20. A row of the Periodic Table.
- 21. The lowest mass alkali metal.
Down
- 1. Moseley discovered this particle, which led to changes in the Periodic Table.
- 2. The lowest mass Noble Gas.
- 3. Metals have high thermal and electrical __________.
- 5. Mendeleev left these when he believed an element had not yet been discovered.
- 6. This element has a higher atomic number but a lower atomic mass than the element before it. This caused an issue for Mendeleev when ordering the elements.
- 9. Mendeleev grouped elements with similar __________.
- 13. The property of an element that relates to whether it is shiny or dull.
- 15. This repeats every time a new period is started.
- 17. The name of the group containing unreactive elements.
- 18. The lowest mass alkaline earth metal.