Chemistry Vocabulary

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Across
  1. 5. the temperature at which a substance melts
  2. 6. metallic elements that occupy the largest part of the periodic table
  3. 8. a model that shows how the electrons circle the nucleus
  4. 11. the ability of a substance to be hammered or pressed into a shape without breaking
  5. 14. a substance made by mixing other substances together
  6. 16. the mass of a chemical element
  7. 18. a substance that is formed when two or more chemical elements are chemically bonded together
  8. 19. a subatomic particle with a positive charge
Down
  1. 1. change that affects the form of a chemical substance but not its chemical composition
  2. 2. gascous element occupying group 18 of the periodic table
  3. 3. change that results with the formation of new substances
  4. 4. the basic unit of life
  5. 7. elements that have properties of metals and non-metals
  6. 8. the temperature at which a substance boils
  7. 9. Table a table that organizes the elements according to their number of protons
  8. 10. a substance particle with a negative charge
  9. 12. a subatomic particle that doesn't have a charge
  10. 13. a part of science that deals with the identifications and properties of matter
  11. 15. a substance of atoms which have the same number of protons
  12. 17. a group of atoms that have the same chemical compound