Quarter 1 Exam

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Across
  1. 4. rows on the periodic table
  2. 7. factor that stays the same during an experiment
  3. 9. columns on the periodic table
  4. 11. types of elements mainly found on the right side of the periodic table
  5. 12. the building block of matter
  6. 15. an explanation as to what is happening based on observations
  7. 16. 2+ substances physically combined
  8. 18. type of mixture that looks the same throughout
  9. 20. the atomic _______________ is equal to the number of protons
  10. 21. type of bond that forms between metals and nonmetals
Down
  1. 1. found in the nucleus, no charge, mass=1 amu
  2. 2. found in the electron cloud, negative charge, mass=0 amu
  3. 3. type of elements found along the zigzag line
  4. 5. the atomic ___________ is equal to the # of protons + # of neutrons
  5. 6. 2+ elements chemically combined
  6. 7. type of bond that forms between two nonmetals
  7. 8. type of data that includes quantities and numbers
  8. 10. type of mixture that looks different throughout
  9. 13. found in the nucleus, positive charge, mass=1 amu
  10. 14. types of elements found mainly on the left side of the periodic table
  11. 17. a ____________ model represents an atom and how the electrons are arranged
  12. 19. matter made up of one type of atom