S No | Question |
Question 1 | Why does alpha particle not make physical contact with the nucleus when the alpha particle is headed direct toward the nucleus of an atom? See Answer |
Question 2 | Why do heavier elements require more neutrons in order to maintain stability? See Answer |
Question 3 | An alpha particle has twice the charge of a beta particle. Why does the former deflects less than the later when passing between electrically charged plates, assuming they both have the same speed? See Answer |
Question 4 | An element x has several isotopes. What does these isotopes have in common? How do they differ? See Answer |
Question 5 | How many protons are there in the nucleus of 86Rn222? How many neutron, how many electrons are in the neutral atom? See Answer |
Question 6 | Rn226 has half-life of 1600 years (a) What fraction remains after 8400 years (b) How many half-lives does it have in 9600 years? See Answer |
Question 7 | Radium has half life of about 1600 years. If the universe was formed five billion or more years ago, why is there any radium left now? See Answer |
Question 8 | Nuclear power plant uses nuclear fission reaction to generate steam to run steam turbine generator. How does the nuclear reaction produce heat? See Answer |
Question 9 | What factors make a fusion reaction difficult to achieve? See Answer |
Question 10 | Discuss the similarities and differences between fission and fusion? See Answer |
Question 11 | In what ways the time constant RC similar to and different from (a) Radioactive decay constant (b) Radioactive half-life? See Answer |
Question 12 | What happens to the atomic number of a nucleus that emits gamma ray photon? See Answer |
Question 13 | What happens to its mass? See Answer |
Question 14 | Explain why neutron activated nuclides tend to decay by beta – instead of beta +? See Answer |
Question 15 | Why are heavy nuclei unstable? See Answer |
Question 16 | What happens to the atomic number and mass number of a nucleus that (a) emits electron (b) undergoes electron capture (c) emits alpha particle? See Answer |
Question 17 | How many alpha decay occur in the decay of Th into Pb? See Answer |
Question 18 | What is the color force? See Answer |
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