EVERYDAY SCIENCE

Detailed explanation-1: -The diameter of an atom is on the order of 10−10 m, whereas the diameter of the nucleus is roughly 10−15 m-about 100, 000 times smaller.

Detailed explanation-2: -While an atom is tiny, the nucleus is ten thousand times smaller than the atom and the quarks and electrons are at least ten thousand times smaller than that.

Detailed explanation-3: -The nucleus of an atom is about 10-15 m in size; this means it is about 10-5 (or 1/100, 000) of the size of the whole atom. A good comparison of the nucleus to the atom is like a pea in the middle of a racetrack. (10-15 m is typical for the smaller nuclei; larger ones go up to about 10 times that.)

Detailed explanation-4: -Solution : The ratio of the radius of electron’s orbit to the radius of nucleus is ‘(10^(–10) m)/(10^(–15) m) = 10^(5)‘, that is, the radius of the electron’s orbit is ‘10^(5)‘ times larger than the radius of nucleus.

Detailed explanation-5: -The diameter of a nucleus is about 2 × 10-15 m and the diameter of an atom is 1 × 10-10 m. What size would the atom be in a model where the Earth represented the nucleus? The diameter of the Earth is 1.3 × 10 7 m. Therefore the atom is 5 × 10 4 larger than the nucleus.