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2. For a 10 MeV alpha particle scattering of of a Gold atom with an angle...
For a 10 MeV alpha particle scattering of of a Gold atom, calculate the total cross section for scattering angles 0 > Omin = 10° in barns. Using the fact that Omin is small, show that o(0 > Omin) = mrbmat, where bmas is the impact parameter corresponding to Omin
In Rutherford's scattering experiments, alpha particles (charge = +2e) were fired at a gold foil. Consider an alpha particle with an initial kinetic energy K heading directly for the nucleus of a gold atom (charge =+79e). The alpha particle will come to rest when all its initial kinetic energy has been converted to electrical potential energy. Find the distance of closest approach between the alpha particle and the gold nucleus for the case K = 3.5 MeV
1. (a) Calculate the potential energy of an alpha particle (z= 2. A = 4) just touching a nucleus of gold (z= 79, A = 178) (b) Would you expect the scattering of 18 MeV alpha particles on gold to obey the Rutherford scattering law?
Calculate the closest distance a 9 MeV alpha particle can approach the target nucleus of an Fe atom for a potential direct head-on impact. How does this value compare with the radius of the Fe nucleus? Does the alpha touch the nucleus?
In Rutherford's famous scattering experiments that led to the planetary model of the atom, alpha particles (having charges of +2e and masses of 6.64 × 10-27 kg) were fired toward a gold nucleus with charge +79e. An alpha particle, initially very far from the gold nucleus, is fired at 2.60 × 10' m/s directly toward the nucleus, as in the figure below How close does the alpha particle get to the gold nucleus before turning around? Assume the gold nucleus...
Alpha-particle scattering experiments using uranium (Z = 92) as the target material show that the alpha-particles experience a pure Coulomb repulsion only for energies up to 8.8 MeV. Estimate the radius of the uranium nucleus.
In Rutherford's famous scattering experiments that led to the planetary model of the atom, alpha particles (having charges of +2e and masses of 6.64 ✕ 10−27 kg) were fired toward a gold nucleus with charge +79e. An alpha particle, initially very far from the gold nucleus, is fired at 2.96 ✕ 107 m/s directly toward the nucleus, as in the figure below. How close does the alpha particle get to the gold nucleus before turning around? Assume the gold nucleus...
In Rutherford's famous scattering experiments that led to the planetary model of the atom, alpha particles (having charges of +2e and masses of 6.64 x 10-27 kg) were fired toward a gold nucleus with charge +79e. An alpha particle, initially very far from the gold nucleus, is fired at 2.74 x 107 m/s directly toward the nucleus, as in the figure below. How close does the alpha particle get to the gold nucleus before turning around? Assume the gold nucleus...
In Rutherford scattering of alpha particles by a gold foil, large deflections can occasionally be observed because: a) a single alpha particle can be scattered many times in encounters with many atoms. b) the alpha particle can be deflected by the many atomic electrons of the gold. c) the wave nature of the alpha particles causes interference effects. d) none of the above.
A beam of 8.3-MeV alpha particles is directed at an aluminum foil. It is found that the Rutherford scattering formula ceases to be obeyed at scattering angles exceeding about 60°. If the alpha-particle radius is assumed small enough to neglect here, find the radius of the aluminum nucleus.