For an 8.0-MeV α particle scattering from a gold atom(Z = 79 ) of radius 0.135 nm, the largest scattering angle, θ is ?()
For an 8.0-MeV α particle scattering from a gold atom(Z = 79 ) of radius 0.135 nm, the largest scattering angle, θ is ?()
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正确答案: