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
Related Mcqs:
- β-rays emission in radioactive disintegration is always accompanied by the emission of____________________?
A. γ-rays
B. α-rays
C. Neutrons
D. None of these - Emission of β-particles during radioactive decay of a substance is from__________________?
A. Innermost shell
B. Nucleus
C. Outermost shell
D. None of these - Nuclear reactors are provided with shield to guard against the emission of mainly _____________ rays?
A. X
B. α and β
C. Neutrons & gamma
D. Infrared - The ratio of volume of an atom to that of its nucleus is__________________?
A. 1012
B. 10-12
C. 10-8
D. 108 - The largest stable nucleus is ________________?
A. U-235
B. U-238
C. Pb-206
D. Bi-209 - The number of neutrons in the nucleus of Uranium-233 (92U233) is _________________?
A. 141
B. 92
C. 233
D. 325 - 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 - 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 - 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) - 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
