Periodic Table Created By:Carsyn Cole

12345678910111213141516171819
Across
  1. 3. molecules stay in place
  2. 5. neutrally charged
  3. 7. developed the Bohr model of an atom
  4. 8. the number of protons
  5. 11. protons and neutrons stay here
  6. 13. a table of the chemical elements arranged in order of atomic number
  7. 15. the basic unit of a chemical element.
  8. 16. a group of atoms bonded together
  9. 19. the mass per unit volume of a substance
Down
  1. 1. negatively charged
  2. 2. positively charged
  3. 4. the mass of an atom
  4. 6. a thing that is composed of two or more separate elements
  5. 9. atomic weight
  6. 10. atomic orbital
  7. 12. formed the Periodic Law
  8. 14. Molecules are spread far apart
  9. 17. molecules pass through each other
  10. 18. pure substance