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What is the distance travelled by an ele...

What is the distance travelled by an electron revolving in the second orbit of Be^(3) in in 100 revolutions?
(A) 3.32`**`1`0^(-8)`m
(B) 5.29`**`1`0^(-8)`m
(C) 6.64`**`1`0^(-8)`m
(D) 1.16t`**`1`0^(-8)`m

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