Periodic Table Crossword

123456789101112131415161718192021
Across
  1. 2. Atoms with the same number of protons and different numbers of neutrons
  2. 7. Deterioration of a metal due to a chemical reaction
  3. 8. A material that can be pulled out or drawn into wires
  4. 9. Opposite of brittle
  5. 12. Horizontal line of elements
  6. 17. Ability of an object to transfer energy
  7. 19. Smallest particle that can be considered an element
  8. 20. The elements on the right side of metalloids
  9. 21. Neutral particles
Down
  1. 1. Also called a group (Vertical lines)
  2. 3. Negatively charged particles
  3. 4. Ability of an object to transfer heat
  4. 5. where the protons and neutrons sit in the center of the Bohr Model
  5. 6. the elements on the left side of metalloids
  6. 10. opposite of dull
  7. 11. The structure where metals, nonmetals, and metalloids are placed
  8. 13. The zig-zag line of elements
  9. 14. The abbreviation for the element
  10. 15. What isotopes are identified by
  11. 16. Positively charged particles
  12. 18. Number of protons and electrons in the nucleus of an atom