Unit 2 Study
Across
- 2. poor conductors of electricity `
- 7. what kind of metal is magnesium?
- 11. negatively charged ion
- 12. what are the columns called on a periodic table?
- 13. very reactive
- 15. how many electrons does chlorine have?
Down
- 1. created the modern periodic table
- 3. positively charged ion
- 4. what are the rows called on a periodic table?
- 5. created the first periodic table
- 6. very low reactivity rate
- 8. Semiconductors
- 9. how many protons does germanium?
- 10. what kind of element is bromine?
- 14. what kind of element is Einsteinium?