The ratio of atomic radius to its nuclear radius is about___________________?

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. 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

3. 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.

4. 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

5. The decrease in the atomic number is not observed in case of________________?

   A. Electron capture
   B. β-emission
   C. α-emission
   D. Positron emission

6. Tarapur (INDIA) atomic power station____________________?

   A. Has two boiling water reactors of American design
   B. Has an installed capacity of 400 MW
   C. Is the first power reactor in India, which became critical in 1969
   D. All A., B. and C.

7. The atomic number of a radioactive element is not changed, when it emits _____________ rays?

   A. α
   B. β
   C. γ
   D. α & β

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

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

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

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

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

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