99 Percentile Qs Bank for JEE MainChemistryStructure of Atom
Which of the following element has the maximum density of nucleus?
Options
- ASi 30 14
- BP 31 15
- CO 16 8
- DAll have the same density.
Correct answer
D. All have the same density.
Step-by-step solution
The nuclear density of an atom is the ratio of mass of the nucleus to the volume of the nucleus. Mass of the nucleus = A Then, radius of the nucleus = R 0   A 1 3 , where R o   = 1 . 25 × 10 - 15   m Thus, the radius of a nucleus depends on the mass of the nucleus. Hence, density = mass volume = A 4 3 π R o A 1 / 3 3 = A × 3 4 × π × R o 3 × A = 3 4 πR o 3 So density do not depend on mass or radius, hence will be same of all element.