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1.
Heavy stable nuclei have more neutrons than protons. This is because of the fact that
2.
Tritium is an isotope of hydrogen whose nucleus Triton contains 2 neutrons and 1 proton. Free neutrons decay into p + e
3.
When a nucleus in an atom undergoes a radioactive decay, the electronic energy levels of the atom [
4.
Mx and My denote the atomic masses of the parent and the daughter nuclei respectively in a radioactive decay. The Q-value for a β- decay is Q1 and that for a β+ decay is Q2 If me denotes the mass of an electron, then which of the following statements is correct?
5.
6.
In nuclear reactors, the control rods are made of
7.
Suppose we consider a large number of containers each containing initially 10000 atoms of a radioactive material with a half-life of 1 year. After 1 year,
8.
Light energy emitted by star is due to
9.
In nuclear reaction, there is conservation of
10.
The equation 41 1H+ --> 24He2+ + 2e- + 26 MeV represents