Atomic Structure Crossword

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Across
  1. 3. ______ LINE IS A SINGLE WAVELENGTH OF LIGHT GOING THROUGH A PRISM, GIVEN OFF BY AN EXCITED ELEMENT
  2. 6. AN ATOM WITH AN ELECTRIC CHARGE
  3. 7. THE CENTRAL PART OF THE ATOM THAT CONTAINS NEUTRONS AND PROTONS
  4. 9. MOST MATTER ON EARTH IS MADE UP OF THESE PARTICLES
  5. 11. THE LAW OF ______ THAT STATES THAT MATTER CAN NEITHER BE CREATED NOR DESTROYED
  6. 12. ATOMS OF DIFFERENT ELEMENTS HAVE DIFFERENT _______ AND PROPERTIES
  7. 15. MADE UP OF THE SAME TYPE OF ATOM
  8. 16. THE SMALLEST PARTICLE IS A MOLECULE
  9. 18. THE ELECTRON _____ IS THE PRESENT MODEL OF THE ATOM
  10. 20. ATOMIC MASS UNIT
  11. 21. DISCOVERED THE ELECTRON
  12. 22. ATOMS OF DIFFERENT ELEMENTS COMBINE IN WHOLE-NUMBER ________
Down
  1. 1. THE REGION WHERE AN ELECTRON WILL MOST LIKELY BE FOUND
  2. 2. PROPOSED THAT ELECTRONS TRAVELED IN PATHS CALLED ENERGY LEVELS
  3. 4. NEGATIVELY CHARGED PARTICLE
  4. 5. DISCOVERED THE NUCLEUS
  5. 6. ATOMS OF THE SAME ELEMENT WITH DIFFERENT NUMBERS OF NEUTRONS
  6. 8. SCIENTIST WHO WAS THE FIRST PERSON TO USE ATOMIC SYMBOLS
  7. 10. HAS MASS AND TAKES UP SPACE
  8. 13. AN ABBREVIATION OF THE ELEMENT'S NAME-USUALLY FROM LATIN
  9. 14. UNCHARGED PARTICLE IN THE NUCLEUS OF THE ATOM
  10. 17. POSITIVELY CHARGED PARTICLE IN THE NUCLEUS OF THE ATOM
  11. 19. MAKES UP ALL SUBATOMIC PARTICLES IN DIFFERENT COMBINATIONS