Chemistry Review

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Across
  1. 2. what a column is called on the periodic table
  2. 8. charge of the electron
  3. 11. ____ electrons that are on the outside shell of an atom
  4. 12. part of the atom outside of the nucleus
  5. 13. the simplest substance made of one type of atom
  6. 14. unit for solid volume
  7. 16. density=____/volume
  8. 17. what a row is called on the periodic table
  9. 18. which part of the atom determines the element
  10. 19. elements on the stairstep
  11. 22. items with a pH from 7.1-14
  12. 23. items ____ dense than one will float in water
  13. 24. charge of the neutron
  14. 25. unit for mass
  15. 27. substance made of two or more elements that are chemically combined
  16. 29. elements to the left of the stairstep
Down
  1. 1. atoms of the same element, but with a different number of neutrons
  2. 3. charge of the proton
  3. 4. the independent variable is the item that ______
  4. 5. items with a pH from 0-6.9 are considered _____
  5. 6. constants are items that stay the ____
  6. 7. items to the left of the arrow in a chemical equation
  7. 9. unit for liquid volume
  8. 10. density of water (spell out number)
  9. 14. a rusting car is a ______ change
  10. 15. elements to the right of the stairstep
  11. 18. the fourth state of matter
  12. 20. atoms with a charge (either positive or negative)
  13. 21. mass number=protons + __________
  14. 26. substance made of two or more substances that are physically combined
  15. 28. items to the right of the arrow in a chemical equation