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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?

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Question 2Why do heavier elements require more neutrons in order to maintain stability?

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Question 3An 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?

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Question 4An element x has several isotopes. What does these isotopes have in common? How do they differ?

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Question 5How many protons are there in the nucleus of 86Rn222? How many neutron, how many electrons are in the neutral atom?

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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?

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Question 7Radium 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?

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Question 8Nuclear power plant uses nuclear fission reaction to generate steam to run steam turbine generator. How does the nuclear reaction produce heat?

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Question 9What factors make a fusion reaction difficult to achieve?

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Question 10Discuss the similarities and differences between fission and fusion?

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Question 11In what ways the time constant RC similar to and different from (a) Radioactive decay constant (b) Radioactive half-life?

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Question 12What happens to the atomic number of a nucleus that emits gamma ray photon?

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Question 13What happens to its mass?

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Question 14Explain why neutron activated nuclides tend to decay by beta – instead of beta +?

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Question 15Why are heavy nuclei unstable?

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Question 16What happens to the atomic number and mass number of a nucleus that (a) emits electron (b) undergoes electron capture (c) emits alpha particle?
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Question 17
How many alpha decay occur in the decay of Th into Pb?

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Question 18What is the color force?

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