The nucleus of an atom has a radius of about 6.8×10-15 m. The electron is normally at a distance of about 1.3×10-11 m from the nucleus. Assuming the atom is a sphere with a radius of 1.3×10-11 m,

1. find the volume of the atom.

2. Find the volume of the nucleus.

3. Find the percentage of the volume of the atom that is occupied by the nucleus

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