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Which of the following statements you think is wrong regarding α particle scattering effect?(a) α particles mostly move through the gold foil having zero deflection(b) A small fraction are deflected(c) One in Twenty Thousand turns 180°(d) The thickness of the gold foil is about 100μmThe question was asked in quiz.I'd like to ask this question from Atomic Models in portion Structure of Atom of Chemistry – Class 11

Answer»

The correct option is (d) The thickness of the gold foil is about 100μm

To explain I would say: In this effect, a thin foil (thickness 100nm) made up of gold and coated with FLUORESCENT ZnS screen which is CIRCULAR around it. α particles MOSTLY move through the gold foil having zero DEFLECTION, a small fraction is deflected and one in twenty THOUSAND turns 180°.



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