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…
S NoQuestionQuestion 1Why does alpha particle not make physical contact with the nucleus when the alpha particle is headed direct toward the nucleus of an…
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…
Question 2: Why do heavier elements require more neutrons in order to maintain stability? ANSWER Nucleons (protons and neutrons) are subjected to two forces in…
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…
Question 4: An element x has several isotopes. What do these isotopes have in common? How do they differ? ANSWER Atoms of a certain element…
Questions 5: How many protons are there in the nucleus of 86Rn222? How many neutrons, how many electrons are there in the neutral atom? ANSWER…
Question 8: Nuclear power plant use nuclear fission reaction to generate steam to run steam-turbine generator. How does the nuclear reaction produce heat? Solution…
Question 9: What factors make a fusion reaction difficult to achieve? ANSWER There are three main difficulties to achieve fusion reaction. In fusion, two smaller…