IPC - MT 2

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Across
  1. 4. number the number of protons in the nucleus of an atom
  2. 5. a change in matter that produces one or more new substances
  3. 6. mixture in which different materials can be distinguished easily
  4. 9. subatomic particle that has a negative charge and is found outside the nucleus
  5. 11. the smallest particle of an element that retains the properties of that element
  6. 12. a column on the periodic table
  7. 13. the electrons in the outermost shell of an atom
  8. 14. a state of matter with no definite shape or volume
  9. 15. a substance made up of atoms of two or more different elements joined by chemical bonds
  10. 17. the number of protons and neutrons in an atom of an element
  11. 18. a state of matter that has a definite shape and definite volume
  12. 20. anything that has mass and takes up space
  13. 21. mass/volume
Down
  1. 1. elements that are good conductors of heat and electric current
  2. 2. mixture in which substances are evenly distributed throughout the mixture
  3. 3. the process by which one or more substances change to produce on or more different substances
  4. 7. reaction that absorbs energy in the form of heat
  5. 8. a subatomic particle that has a positive charge and is found inside the nucleus
  6. 10. the center of an atom which contains the protons and neutrons
  7. 16. a horizontal row of elements on the periodic table
  8. 19. atoms of the same element that have different numbers of neutrons