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Across 2. Made in lab 4. Both metal & non-metal 5. Drew 1st periodic table 6. Transfer and accept valence electrons (2 Words) 7. Energy level divided into these... 8. Positive charge 9. # of Protons in an Atom (2 Words) 11. Conduct heat & electricity 12. Poor conductors of heat & electricity 14. Every element has one of these.. 17. Positively charged atom 18. Pair of electrons is shared between atoms (2 Words) 19. Electrons in last electron shell (2 Words) 20. Negative charge 21. 8 electrons to be "Happy" (2 Words) 22. Most elements are at this state at room temperature 23. Verticle up & down columns in a periodic table

Down 1. Give off particles 3. Low melting points (2 Words) 10. Holds an atoms electrons (2 Words) 13. : Si : (3 Words) 15. High melting points (2 Words) 16. Made of one atom 17. Horizontal rows in a periodic table