The Periodic Table

123456789101112131415161718
Across
  1. 5. characteristics used for identification
  2. 7. particles with neutral charge
  3. 9. homogeneous mixture that remains uniformly mixed
  4. 11. matter composed of two or more substances that can be separated by physical means
  5. 12. a substance made of atoms that are alike
  6. 14. element with abbreviation C
  7. 17. heterogenous mixture with particles that never settle
  8. 18. substances that are shiny conductors that are maleable, ductile, and solid at room temp
Down
  1. 1. positively charged center of atom
  2. 2. multiple elements bonded together
  3. 3. positively charged ion
  4. 4. atoms of the same element that have different numbers of neutrons
  5. 6. a type of matter with fixed composition
  6. 8. heterogenous mixture made of liquid and solid particles that settle
  7. 10. smallest particle of an element that retains the element's properties
  8. 11. anything that takes up space and has mass
  9. 12. particles with negative charge
  10. 13. atom with positive charge
  11. 15. ability to be hammered into sheets
  12. 16. particles with positive charge