When the difference between mass number and atomic number of atoms of two or more elements are same, the atoms are termed as____________________?

Related Mcqs:

1. 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

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

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

3. Nuclides having the same atomic numbers are termed as___________________?

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

4. The ratio of neutrons to protons of an element having a mass number and atomic number of 80 and 40 respectively is ___________________?

   A. 1
   B. 0.5
   C. 2
   D. 4

5. The atomic mass of an element is fractional, because ______________________?

   A. Of uncertainty principle
   B. It may have isobars
   C. It contains neutrons
   D. It may have isotopes

6. Energy equivalent to one atomic mass unit (amu) is ______________ MeV?

   A. 9.31
   B. 93.1
   C. 931
   D. 9310

7. “Critical mass” is the minimum mass of nuclear fissile material required for the__________________?

   A. Sustainment of chain reaction
   B. Power generation on commercial scale
   C. Economic power generation
   D. None of these

8. The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of a proton to that of an electron?

   A. 159
   B. 1837
   C. 2537
   D. 10000

9. “Critical mass” is the minimum mass of nuclear fissile material required for the_______________________?

   A. Sustainment of chain reaction
   B. Power generation on commercial scale
   C. Economic power generation
   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