The ratio of volume of an atom to that of its nucleus is__________________?

Related Mcqs:

1. Out of the following, nucleus of _____________ atom contains the largest number of neutrons?

   A. U-235
   B. U-238
   C. U-239
   D. Pu-239

2. The atomic number of an element is equal to the number of ______________ present in its atom?

   A. Neutrons
   B. Electrons
   C. Protons
   D. Either B. or C.

3. The largest stable nucleus is ________________?

   A. U-235
   B. U-238
   C. Pb-206
   D. Bi-209

4. The emission of an a-particle causes the resultant nucleus to have____________________?

   A. More atomic weight and less atomic number
   B. Less atomic weight and less atomic number
   C. Less atomic weight and more atomic number
   D. None of these

5. The number of neutrons in the nucleus of Uranium-233 (92U233) is _________________?

   A. 141
   B. 92
   C. 233
   D. 325

6. The sum of masses of two nuclei produced in nuclear fission compared to the mass of original nucleus is_____________________?

   A. Less
   B. More
   C. Same
   D. Much more

7. The mass number of an element is equal to the number of _____________ in the nucleus?

   A. Electrons
   B. Neutrons
   C. Protons
   D. Neutrons plus protons (i.e., nucleons)

8. The new nucleus formed after β-decay of a radioactive element has___________________?

   A. Less atomic number
   B. Less atomic weight
   C. More atomic number
   D. More atomic weight

9. The size of an atom is of the order of one __________________?

   A. °Angstrom
   B. Fermi
   C. Micron
   D. mm

10. Critical energy should be _______________ the neutron binding energy of the atom in order to initiate a nuclear fission?

    A. Equal to
    B. Less than
    C. More than
    D. Either more or less