Across
- 6. Radioactive elements in period 7
- 7. Shininess of a metal
- 8. Vertical column on the periodic table
- 12. Ability to attract electrons in a bond
- 15. Ability to carry heat or electricity
- 19. Ability to be drawn into wires
- 21. Element that is shiny and conducts electricity
- 22. earth metals Group 2 elements, reactive but less so
- 23. metals Group 1 elements, very reactive
- 24. metals Middle block elements with variable charges
Down
- 1. Group 17 elements, reactive nonmetals
- 2. law Element properties repeat in a pattern
- 3. Ability to be hammered into thin sheets
- 4. energy Energy needed to remove an electron
- 5. Introduced uncertainty principle
- 7. Rare earth elements in period 6
- 9. How easily an element combines with others
- 10. Element with properties of metals and nonmetals
- 11. Horizontal row on the periodic table
- 13. weight Average mass of atoms of an element
- 14. symbol One or two letters representing an element
- 16. Discovered the neutron
- 17. radius Size of an atom
- 18. gases Group 18 elements, very stable and unreactive
- 20. Element that is dull and poor conductor