Atomic Theory

12345678910111213
Across
  1. 3. The positively charged particle in the nucleus
  2. 6. This shows the most likley locations for electrons in an atom
  3. 7. This is the region of space around the nucleus where an electon is likley to be found
  4. 8. This number shows the number of electrons in an atom
  5. 11. The negatively charged particle in an atom
  6. 12. This exists because an atom can have different number of neutrons
  7. 13. Name of the person who proposed that all elements are composed of atoms
Down
  1. 1. This relationship between elements in compounds is always the same
  2. 2. The most stable electron configuration
  3. 4. The man who created the Gold Foil experiment and theorised that all of an atom's positive charge is concentrated in its nucleus
  4. 5. This man's experiments focussed on electrons and their positions
  5. 6. Electrons change this level as they gain or lose energies
  6. 9. This man's experiments provided the first evidence that atoms are made of smaller particles
  7. 10. James Chadwick designed an experiment to show that these exist