Chemistry Crossword

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Across
  1. 2. Electron Shells.
  2. 4. Uranium.
  3. 5. What Is In an Atom ?
  4. 9. What Is In an Atom ?
  5. 11. What Is In an Atom ?
  6. 12. Metals.
  7. 13. Levels.
Down
  1. 1. Interaction.
  2. 3. Sensitivity of an element.
  3. 6. Periodic Table.
  4. 7. Component of the periodic table.
  5. 8. Burning.
  6. 10. To be apart of something.