Across
- 2. electrons in the outer most shell
- 4. the amount of time it takes parent => daughter
- 6. stretched into wires
- 9. negatively charged
- 12. when an element loses or gains electrons
- 13. has 8 valence electrons in this family
- 15. rows in the periodic table
Down
- 1. hammered into sheets
- 3. good conductors
- 5. elements that have the same amount of protons but different number of neutrons
- 7. has both metallic and nonmetallic properties
- 8. positively charged
- 10. no charge
- 11. poor conductors
- 14. columns in the periodic table