The Periodic Table Vocabulary Crossword

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Across
  1. 1. elements in the top row below the main table, also called rare earth metals
  2. 6. rows in the periodic table
  3. 8. occurring in a regular, repeating pattern
  4. 10. elements with properties of both metals and nonmetals
  5. 11. a one- or two-letter abbreviation for an element
  6. 12. substances made of only one type of atom
  7. 13. a chart showing all elements arranged by repeating patterns of properties
  8. 14. elements in the bottom row below the main table that are radioactive
  9. 15. elements that are typically shiny, conductive, and found on the left side of the table
Down
  1. 2. elements that are poor conductors and found on the right side of the table
  2. 3. the number of protons in an atom’s nucleus
  3. 4. columns in the periodic table that contain elements with similar properties
  4. 5. (amu) units used to measure the mass of atoms
  5. 7. characteristics of a substance that can be observed or measured
  6. 9. the average mass of all the isotopes of an element