Unit B- Matter and Chemical Change

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Across
  1. 4. Mass of one atom of an element calculated from the total number of protons, neutrons and electrons of that atom.
  2. 7. The smallest part of an element that is representative of that element.
  3. 9. substance that reacts with another substance or substances in a chemical reaction to create new substances with a new set of properties
  4. 10. Orbit of electrons around the nucleus of an atom.
  5. 11. Pure substance formed when at least one metal and non-metal combines
  6. 12. Number of protons in the nucleus of one atom of an element.
  7. 14. Element that is shiny, malleable, ductile and conducts electricity.
  8. 18. Pure substance formed when non-metals combine.
  9. 19. Positively charged particle in the nucleus of an atom.
  10. 21. Change of state from from a solid to a liquid.
  11. 22. An experiment in which one or more products of a chemical reaction are contained.
  12. 23. Neutral particle in the nucleus of an atom.
  13. 24. Change of state from a liquid to a gas.
  14. 25. Atom has become electrically charged because it has gained or lost electrons.
Down
  1. 1. Cloudy mixture that cannot be separated.
  2. 2. Mixture in which the different substances are easy to see.
  3. 3. Made up of two or more substances combined together.
  4. 5. Mixture of two or more pure substances that looks like one.
  5. 6. Change in the appearance of a substance that doesn’t change the composition.
  6. 8. New substance created in a chemical reaction between reactants
  7. 10. Pure substance that cannot be broken down into substances.
  8. 13. An element that that has metallic and non-metallic properties.
  9. 15. (in chemistry) Vertical column of elements in the periodic table. Also called a group
  10. 16. Change of state from a gas to a liquid.
  11. 17. Chemical combination of two or more elements in a specific ratio.
  12. 20. Horizontal row of elements in the periodic table.