Question 16: What happens to the atomic number and mass number of nucleus that (a) emits electron (b) undergoes electron capture (c) emits α particle?…
Question13: What happens to its mass? ANSWER γ radiation is photon which neither have charge nor rest mass. Therefore, with the emission of γ ray…
Question 10: Discuss the similarities and differences between fission and fusion. ANSWER Similarities Both, fission and fusion, are nuclear reactions in which energy is released.…
Question 11: In what ways is the time constant RC similar to and different from (a) Radioactive decay constant (b) Radioactive half-life? ANSWER The decay…
Question 12: What happens to atomic number of a nucleus that emits γ rays photons? ANSWER γ radiation is photon which neither have charge nor…
Question 14: Explain why neutron activated nuclides tend to decay by β– rather than β+. ANSWER The emission of neutron is due to the fact…
Question 15: Why are heavy nuclei unstable? ANSWER In the nucleus, nucleons (both protons and neutrons) are under the influence of two forces; (1) Coulomb’s…
Question 17: How many α decay occur in the decay of thorium 90Th 298 into 82Pb282? ANSWER The difference in the charge numbers of 90Th…
Question 18: What is color force? ANSWER Color force has nothing to do with colors. It is just a convention like positive and negative in…
Question 6: Ra226 has half life of 1600 years. (a) What fraction remains after 4800 years. (b) How many half-lives does it have in 9600…