Nature of Matter

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Across
  1. 1. This effect illustrated that photons have both momentum and kinetic energy.
  2. 4. This property of an x-ray photon will increase when it collides with a free electron.
  3. 5. This type of spectra is produced when light travels through a cool low density gas.
  4. 6. This type of ray can be deflected by either a magnetic or electric field.
  5. 10. This scientist's scattering experiments showed that atoms have a small dense nucleus.
  6. 11. Increasing this variable in the photoelectric effect will increase the speed of the ejected electrons.
  7. 12. Maxwell's theory of electromagnetism implied that Rutherford's nuclear model of the atom could not work because the orbiting electron had this type of motion.
  8. 13. This type of EMR photon would have the greatest energy.
Down
  1. 1. This conservation law is the reason that pair production occurs when a photon interacts with matter rather than the production of a single electron.
  2. 2. This is the type of energy the alpha particle would have when it is closest to the nucleus in Rutherford's gold foil experiment when the alpha particle was deflected straight back.
  3. 3. This type if photon is produced when an electrons are rapidly decelerated.
  4. 7. This experiment involving electrons provided evidence that matter can have wave-like properties.
  5. 8. This is the power output when 9 x 10¹⁸ photons of visible light with a wavelength of 596.7 nm are emitted from a lightbulb per second.
  6. 9. This variable in the photoelectric effect does not have any effect on the maximum kinetic energy of the photoelectrons.