Atoms F1: The Nuclear Atom

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Across
  1. 6. Z
  2. 7. In the scattering experiment, the majority of particles went ____ ____ the target material.
  3. 9. The process of an unstable nucleus breaking apart.
  4. 10. A
  5. 14. We know the nucleus is small because, ____ particles were diverted from their path.
  6. 16. In the scattering experiment, very few particles were ____ ____ by the target material.
Down
  1. 1. Radioactive particle that was used to discover the nucleus.
  2. 2. Force that is attractive and short-ranged.
  3. 3. Has a diameter of between 30 and 300pm.
  4. 4. Scientist who is credited with the discovery of the nucleus.
  5. 5. In the scattering experiment, some of the particles were ____ by the target material.
  6. 8. Atoms with the same proton number but different nucleon numbers.
  7. 11. We know the nucleus is positively charged because, the positive particles were _____ from their path.
  8. 12. Has a diameter of between 2 and 12fm.
  9. 13. The material targeted by radioactive particles in the scattering experiment.
  10. 15. Mass per unit volume.