1.00% of the 
particles were found to deflect at
angles > 50°. If one mole of particles were
bombarded on the gold foil, compute the number of particles
that would deflect at angles less than 50°.
Answer:
% of 
particles deflected more than 50° = 1%
of a-particles.
% of particles deflected less than 50° =
100 - 1 = 99%
Number of particles that deflected at an angle less than
50°
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