Atoms Crossword

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Across
  1. 1. Cause atoms to be unstable.
  2. 3. Smallest unit of matter.
  3. 4. Neutral particle.
  4. 7. Holds all atom information.
  5. 8. Positively charged particle.
  6. 9. Type of classification for non conductive atoms.
  7. 12. Classifies different types of atoms on the periodic table. For example: Alkaline Earth metals.
  8. 13. First number above the atoms on periodic table.
  9. 16. How many levels an atom has.
Down
  1. 2. Holds electrons outside core.
  2. 5. Name of the person that made this
  3. 6. Second atom form on the periodic table.
  4. 8. Number that shows how much energy levels an electron has.
  5. 10. Type of classification for atoms with characteristics from metal and nonmetals.
  6. 11. First atom form on the periodic table.
  7. 14. Negatively charged particle.
  8. 15. Type of classification for very conductive atoms.