GHI4 Chemistry 1

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Across
  1. 3. ________________is everything that occupies space and has mass.
  2. 5. A subatomic particle with a negative charge
  3. 6. The _________________ is the building block of matter.
  4. 7. Greek philosopher who first theorized the atom
  5. 11. A subatomic particle with a positive charge
  6. 13. A subatomic particle with a neutral charge
  7. 15. A substance made of only one kind of atom is called an _____________________.
Down
  1. 1. ______________ is the study of matter and the changes it undergoes.
  2. 2. element that conducts heat and electricity well
  3. 3. Russian chemist who developed the first Periodic Table
  4. 4. shiny
  5. 8. able to hammer into thin sheets
  6. 9. Elements are arranged in the Periodic Table by ___________ atomic number
  7. 10. element that has properties of metals and nonmetals
  8. 12. where protons and neutrons exist
  9. 14. element that conducts heat and electricity poorly