Atoms and The Periodic Table

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Across
  1. 3. has no charge
  2. 6. theorized that electrons were orbiting the nucleus
  3. 7. utilized gold foilexperiment involving alpha particles;theorized that atoms had a dense core which was a positive nucleus
  4. 8. theorized that atoms are too small to be seen with eye, are made up of only 1 kind of atom
  5. 9. vertical columns of elements on the periodic table
  6. 11. has a positive charge
  7. 13. used cathode ray to detect electrons and theorized that electrons were embedded in nuclei of atoms (chocolate chip model)
Down
  1. 1. has a negative charge
  2. 2. initiated term “atoms” and stated that atoms could not be divided
  3. 4. horizontal rows on the periodic table
  4. 5. with the exception of Hydrogen (H), are located on the right side of the zigzag line on the periodic table
  5. 10. are found along this zigzag line
  6. 12. named neutrons
  7. 14. are generally located on the left side of the zigzag line