Answer:
From mole concept,
1 mole ==6.022 x 1023 particles
(Mole concept was discussed in previous chapter) Number of
particles deflected at angles
greater than 50° (> 50°) = 1% (Given)
Number of a-particles
deflected at the angles less than
50° =100-1 = 99%
Actual number of particles deflected at the angles less
than
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