Matter Review 26

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Across
  1. 4. Matter changing from liquid to solid
  2. 6. Matter changing from solid to gas
  3. 7. A state of matter that has a definite shape and volume
  4. 10. Matter that fills the entire volume of a container. The atoms move freely and collide randomly with each other.
  5. 12. Group 17, most reactive nonmetals on the periodic table
  6. 15. Horizontal rows on the periodic table
  7. 17. A substance that is only composed of one type of molecule(element or compound)
  8. 19. Matter with definite volume but it takes the shape of a container. The atoms have just enough energy to slide past each other.
  9. 20. Matter changing from gas to liquid
  10. 21. Basic unit of matter that can join together to form all objects
  11. 22. The symbol used to show a chemical reaction has taken place
  12. 23. Group 1, most reactive metals on the periodic table
  13. 24. Vertical columns on the periodic table
  14. 26. Matter changing from liquid to gas
  15. 28. Group 18, least reactive group on the periodic table
  16. 29. Matter changing from gas to solid
  17. 30. Matter changing from solid to liquid
  18. 32. A combination of two or more substances that are not chemically united
  19. 34. the number of protons plus the number of neutrons
  20. 35. A subatomic particle with a negative charge, that is found outside of an atom's nucleus.
  21. 36. Ending materials created in a chemical reaction.
Down
  1. 1. Does not impact the composition of a substance, and does not form a new substance
  2. 2. A state of matter that has a definite volume but no definite shape.
  3. 3. One or more substances are changed into a new substance that has different and new properties
  4. 5. The smallest particle that an element or compound can be split into without changing its chemical and physical properties
  5. 8. A pure substance that can not be broken down into other substances by chemical or physical means, made of one type of atom
  6. 9. positively or negatively charged atoms
  7. 11. A subatomic particle with no charge, that is found in an atom's nucleus.
  8. 13. the number of protons in the nucleus of an atom
  9. 14. Matter with definite shape and volume. The atoms have limited energy.
  10. 16. A starting material in a chemical reaction
  11. 18. A pure substance that is two or more elements chemically combined
  12. 25. Number of electrons in the outermost shell of an atom
  13. 27. Anything that has mass and takes up space
  14. 31. A state of matter with no definite shape or volume
  15. 33. A subatomic particle with a positive charge, that is found in an atom's nucleus.