Across
- 2. atoms always have the same number of protons and electrons, this is called the ___ number.
- 5. These types of metals are found in the middle of the periodic table
- 9. these are poor conductors
- 10. a neutral particle in the nucleas of an atom
- 12. positively charged
- 13. family Another word for family
- 14. atomic number is 1
- 18. these have properties of both metals and nonmetals
Down
- 1. the abreviation for the elment
- 3. the ___ number of how much an element weights
- 4. What was Jhon B's tressure to find in outer banks
- 5. what period is sodium in?
- 6. What kind of metal is Calcium?
- 7. atoms arranged ont he periodic table
- 8. a verticle column on the periodic table
- 11. What is Beryliums atomic number?
- 15. The center of an atom
- 16. used in balloons
- 17. a horizontal row ont he periodic table.