Periodic Table crossword

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Across
  1. 2. A small particle in the nucleus of an atom with no charge.
  2. 4. vertical columns
  3. 5. the smallest particle of an element.
  4. 6. group 3 period 6
  5. 7. horizontal rows
  6. 8. group number 2
  7. 11. A tinny negatively charged particle that moves around the nucleus of an atom.
  8. 13. groups 13-17 found along the Zigzag
Down
  1. 1. mass of the Nucleus
  2. 3. the number of Protons and Electrons
  3. 7. a chart of elements showing the repeating patterns of their properties.
  4. 8. group 3 period 7
  5. 9. the ease and speed with which an element or compound combines with other elements and compounds.
  6. 10. A small positively charged particle in the nucleus of an atom.
  7. 12. group 1 just Hydrogen