CW-PT Qz Def

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Across
  1. 3. # of Protons; determines element’s identity (2 Words)
  2. 4. Smallest building block of matter
  3. 8. Column on periodic table
  4. 10. Layers of electron orbital paths around nucleus (2 Words)
  5. 11. Calculate mass-atomic #
  6. 13. Similar Valence electrons results in similar properties in a periodic table column
  7. 15. Most reactive Metals due to 1 Valence electron (2 Words)
  8. 16. Non reactive because of a full shell of valence electrons
  9. 17. Arranged the elements by the atomic mass and their properties.
  10. 18. Liquid or gas, low melting & boiling point, good insulator; does not conduct well
  11. 19. Row on periodic table; determines # orbital rings
Down
  1. 1. Metal that can be hammered into sheets; Ex. Aluminum Foil
  2. 2. Most reactive Nonmetal due to the lack of 1 Valence electron
  3. 5. “Inert”; nonreactive due to full layer of valence e- (2 Words)
  4. 6. Describes the difficulty to scratch or crush a material
  5. 7. Solid, hard, high melting & boiling point, conducts heat & electricity well, shiny
  6. 9. Metal that can be pulled into wire; Ex. Copper
  7. 12. Electrons in outermost shell; determines reactivity & bonding (2 Words)
  8. 14. “Metalloids”; Weak properties of metal & nonmetals