Periodic Table

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Across
  1. 4. Atomic Mass - Atomic Number
  2. 5. Number of protons and atom has
  3. 11. What is formed when nonmetals bond with metals
  4. 12. When 2 atoms of metals combine they create a _____
  5. 13. The columns on the periodic table
  6. 14. Right of the stair step line
  7. 15. The rows on the periodic table
  8. 17. The protons and neutrons in the nucleus
  9. 19. Second group of metals
  10. 20. Atomic Number
Down
  1. 1. Electrons that do the bonding when atoms combine
  2. 2. Another name for group 18 on the periodic table
  3. 3. Smallest particles of an elements that retains the elements properties
  4. 6. The positively charge of the center of the a
  5. 7. Number of rings around a nucleus
  6. 8. Only nonmetal that is found left of the stair step line
  7. 9. What is formed when nonmetals bond together
  8. 10. Known as group 17 on the periodic table
  9. 16. First group of metals
  10. 18. Left of the stairs step line