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The nucleus of an atom can be assumed to be spherical. The radius of the nucleus of mass number 7 is given by 1.25x 10^-13 A ^1/3 cm Radius of atom is one A. If the mass number is 64, then the fraction of the atomic volume that is occupied by the nucleus is:

(1)1.0x 10^-3

(2) 5.0x 10^-5

(3) 2.5x 10^-2

(4) 1.25x 10^-13

Ans: 1.25x 10^-13

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Category:- Chemistry
Reference No.:- M9550013

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