Physical Science Ch 9 & 10

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Across
  1. 3. particles with a neutral charge
  2. 4. a heterogeneous mixture that settles
  3. 8. a heterogeneous mixture that never settles
  4. 10. atoms of the same element that have a different number of neutrons
  5. 11. a mixture in which two or more substances are evenly spread out
  6. 14. either an element or a compound
  7. 15. elements to the right side of the stair step line
  8. 16. made from atoms of two or more elements that have combined
Down
  1. 1. a mixture in which different materials can be easily distinguished
  2. 2. solids at room temperature, shiny, good conductors of heat
  3. 5. horizontal rows of elements on the periodic table
  4. 6. the positively charged center of an atom
  5. 7. positively charged particles
  6. 9. matter that is made up of only one type of atom
  7. 12. particles with a negative charge
  8. 13. have properties of both metals and non metals