Periodic Table - EOG Review

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Across
  1. 5. How willing an atom is to bond with another
  2. 6. Unreactive, stable group on the PT
  3. 8. Electrons in outer shell
  4. 12. Only nonmetal element left of the stairstep
  5. 14. The number of protons and neutrons in the nucleus
  6. 16. One of the particles found in the nucleus
  7. 17. Most reactive metal group
  8. 18. Name of group 17 elements
  9. 19. Horizontal row on the periodic table
  10. 21. Element with 1 more proton than Scandium
  11. 22. Elements touching the stairstep on the PT
  12. 23. Atomic_____: Tells number of protons
  13. 25. Similar elements are found in the same _______
  14. 27. An atom with a charge
  15. 28. Neutral subatomic particle
  16. 29. Least reactive group of metals, groups 3-12
Down
  1. 1. Negative Subatomic Particle
  2. 2. Another word for "shine," describes metals
  3. 3. Another word for "bendable"
  4. 4. Heaviest element in Alkali Metals
  5. 7. Element chemically similar to Oxygen
  6. 9. Element with 7 valence electrons and 3 shells
  7. 10. Charge of an ion with 4 protons and 2 electrons (write out in words)
  8. 11. Describes metalloid conductivity
  9. 13. Element with 6 valence electrons and 4 shells
  10. 15. Metalloid element with 3 electron shells
  11. 20. Different versions of same element with different neutrons
  12. 24. Group 2 element with 6 electron shells
  13. 26. ____Rule: Atoms want a full valence shell