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Nuclear Power Engineering

Nuclear Power Engineering
The time required for half of the __________ of a radioactive isotope to decay is called its half life.

Protons
Electrons
Neutrons
Nuclei

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Nuclear Power Engineering
Radioactive decay is a __________ change.

None of these
Nuclear
Physical
Chemical

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Nuclear Power Engineering
The decrease in the atomic number is not observed in case of

Β-emission
Electron capture
Positron emission
Α-emission

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Nuclear Power Engineering
The ratio of atomic radius to its nuclear radius is about

10¹²
10¹⁵
10⁸
10⁵

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Nuclear Power Engineering
Isotopes of an element have the same

Atomic weight
Mass number
Number of neutrons
Electronic configuration

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Nuclear Power Engineering
The number of neutrons accompanying the formation of 54Xe139 and 38Sr94 from the absorption of a slow neutron by 92U235 , followed by nuclear fission is

4
3
2
1

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