In some of Rutherford's experiments (Fig. 27–19) thea particles (mass = 6.64 × 10-27 kg) had a kinetic energyof 4.8 MeV. How close could they get to the surface of agold nucleus (radius = 7.0 × 10-15 m, charge = +79e)?Ignore the recoil motion of the nucleus. Viewing screena particlesFIGURE 27–19 Experimental setupfor Rutherford's experiment:a particles emitted by radon aredeflected by the atoms of a thin metalSourcecontainingradonMetalfoilfoil and a few rebound backward.

Given: The mass of alpha particle is m=6.64×10-27 kg. The kinetic energy of particle is K=4.8 MeV.…

Answered: In some of Rutherford's experiments…

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