Atomic Physics Google Play www.pkseripros.com Nuclear Physics

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Across
  1. 1. What is Z in this equation: A = Z + N?
  2. 4. In an ___________________ line spectra, NO black mines are observed.
  3. 6. ________________ proposed that all matter has wave properties and that wavelength is given by λ = h/p, where h is Plank’s constant, and p is momentum.
  4. 8. Theory that proposes that electrons travel around a central nucleus in orbits and that most of the atomic mass, a tiny positively charged, dense core was in the nucleus around which negative particles orbited.
  5. 9. Discreet.
  6. 11. A device that combines data from several X-rays to produce a detailed 2- or 3-dimensional images of structures inside the body.
  7. 12. Evidence of the wave nature of electromagnetic radiation.
Down
  1. 2. Responsible for the Plum-pudding atomic model in which electrons were embedded in a positively charged atom like the plums were embedded in a pudding.
  2. 3. The thin gold-foil alpha particle scattering experiments where most particles went straight through undeviating, but some were reflected right back at the source, provide evidence for the ______ model of the atom.
  3. 5. Evidence for the wave nature of particles.
  4. 7. Theory that proposes that electrons travel around a central nucleus in orbits of discrete or fixed energy and emission spectra ware due to loss of energy when an electron moved from an outer to a closer -to-the-nucleus inner orbital energy level.
  5. 10. In an ___________________ line spectra, black mines are observed.