The nucleus and an atom can be assumed to be spherical. The radius of the nucleus of mass no. A is given by $1.25 \times {10^{ - 13}} \times {A^{1/3}}{\rm{cm}}.$. The atomic radius of atom is 1 Å. If the mass no. is 64, the fraction of the atomic volume that is occupied by nucleus is:

NEET UG CHEMISTRY MCQ: STRUCTURE OF ATOM

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The nucleus and an atom can be assumed to be spherical. The radius of the nucleus of mass no. A is given by

1.25 \times {10^{ - 13}} \times {A^{1/3}}\mathrm{cm}.

. The atomic radius of atom is 1 Å. If the mass no. is 64, the fraction of the atomic volume that is occupied by nucleus is:

View answer and explanation

Correct option: D

1.25 \times {10^{ - 13}}

Option D (

1.25 \times {10^{ - 13}}

) is correct because it represents the ratio of the volume of the nucleus to the volume of the atom, calculated using the given radii and the formula for the volume of a sphere.

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