Q1.Samples of two radioactive nuclides A and B are taken. λA and λB are the disintegration constants of A and B respectively. In which cases, the two samples can simultaneously have the same decay rate at any time?
Q2.Tritium is an isotope of hydrogen whose nucleus Triton contains 2 neutrons and 1 proton. Free neutrons decay into p + e + v . If one of the neutrons in Triton decays, it would transform into He3 nucleus. This does not happen. This is because-
Answers
Answer:
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Explanation:
1.N=N 0 e −λt
∴ifinitial rate is same and λ A =λ B
hence
initial rate of decay of A is twice the initial rate of decay of B is ✓\ A=✓\B
2.Triton energy is less than that of a He³ nucleus
Explanation:
Tritium also known as hydrogen-3 or H³ is a radioactive isotope of hydrogen, The nucleus contains one proton and two neutrons. If one neutron decays then the nucleus may have two protons and one neutron. This means that tritium will transform into 2He3 with two protons and one neutron. However, such a case does not happen as the triton energy is less than that of 2He3 nucleus. This states that the transformation is not allowed energetically.
Thus the triton energy is less than that of a He³ nucleus
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