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

Related Mcqs:

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

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

2. The atomic weight and atomic number of an element are A and Z respectively. What is the number of neutrons in the atom of that element ?

   A. A + Z
   B. A – Z
   C. A
   D. Z

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

   A. 1012
   B. 10-12
   C. 10-8
   D. 108

4. The largest stable nucleus is ________________?

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

5. Thermal neutrons which are used to cause the fission of U-235 have energy _____________ eV?

   A. < 0.025
   B. > 1
   C. 1-25
   D. > 200

6. Neutrons have mass approximately equal to that of _____________ atoms?

   A. Hydrogen
   B. Helium
   C. Deuterium
   D. None of these

7. A moderator _____________ the neutrons?

   A. Slows down
   B. Absorbs
   C. Accelerates
   D. Reflects

8. 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)

9. Heavy water used in the nuclear reactors to slow down the speed of neutrons is __________________?

   A. Highly purified water
   B. A compound of oxygen and deuterium
   C. Water having dissolved salts of heavy metals
   D. None of these

10. Atoms with same number of neutrons, but different number of nucleons are called___________________?

    A. Isotones
    B. Isobars
    C. Isotopes
    D. Isostere