Atomic Theory

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Across
  1. 5. Electrons change this level as they gain or lose energies
  2. 6. This relationship between elements in compounds is always the same
  3. 8. This shows the most likley locations for electrons in an atom
  4. 9. This number shows the number of electrons in an atom
  5. 10. James Chadwick designed an experiment to show that these exist
  6. 12. The negatively charged particle in an atom
  7. 13. This man's experiments focussed on electrons and their positions
  8. 14. Name of the person who proposed that all elements are composed of atoms
Down
  1. 1. The most stable electron configuration
  2. 2. The man who created the Gold Foil experiment and theorised that all of an atom's positive charge is concentrated in its nucleus
  3. 3. The positively charged particle in the nucleus
  4. 4. This exists because an atom can have different number of neutrons
  5. 7. This is the region of space around the nucleus where an electon is likley to be found
  6. 11. This man's experiments provided the first evidence that atoms are made of smaller particles