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Higher Chemistry. Unit 3 Section 6 Nuclear Chemistry Multiple Choice Questions. This is designed to be used by teachers to help students develop skills in answering multiple choice questions. Douglas Racey, Waid Academy, Anstruther, Fife, Scotland.
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Higher Chemistry Unit 3Section 6 Nuclear ChemistryMultiple Choice Questions This is designed to be used by teachers to help students develop skills in answering multiple choice questions. Douglas Racey, Waid Academy, Anstruther, Fife, Scotland
Higher Chemistry Unit 3 - Section 6 Nuclear ChemistryMultiple Choice Questions 1. 14C has a half-life of 5600 years. An analysis of charcoal from a wood fire shows that its 14C content is 25% that of living wood. How many years have passed since the wood for the fire was cut? A. 1 400 B. 4 200 C. 11 200 D. 16 800 C. Answer
Higher Chemistry Unit 3 - Section 6 Nuclear ChemistryMultiple Choice Questions 2. Radioactive uranium is present in rocks in the form of compounds like uranium(IV)oxide. When the rock is processed, a large amount of the uranium can be recovered as pure metal. Compared to the original rock, the half-life of the pure metal will be A. shorter B. the same C. longer D. depend upon the amount that is recovered B. Answer
Higher Chemistry Unit 3 - Section 6 Nuclear ChemistryMultiple Choice Questions 3. Induced nuclear reactions can be described in a shortened form T (x,y) P The participants are, the target nucleus (T), the bombarding particle (x), the ejected particle (y) and the product nucleus (P). Which nuclear reaction would not give the product nucleus indicated A. 236Np (p, a) 238U B. 242Cf (n, a) 239Pu C. 10B (a, n) 13N D. 14N (a, p) 17O D. Answer
Higher Chemistry Unit 3 - Section 6 Nuclear ChemistryMultiple Choice Questions 4. Which particle will be formed when an atom of 211Bi loses an alpha particle and the decay product then loses a beta particle? A. 210Au B. 209Hg C. 208Tl D. 207Pb D. Answer
Higher Chemistry Unit 3 - Section 6 Nuclear ChemistryMultiple Choice Questions 5. The half-life of the isotope 210Pb is 21 years. What fraction of the original 210Pb atoms will be present in 63 years? A. 0.5 B. 0.25 C. 0.125 D. 0.0625 C. Answer
Higher Chemistry Unit 3 - Section 6 Nuclear ChemistryMultiple Choice Questions 6. Strontium-90 is a radioisotope. What is the neutron to proton ratio in an atom of this isotope? A. 0.73 B. 1.00 C. 1.37 D. 2.37 C. Answer
Higher Chemistry Unit 3 - Section 6 Nuclear ChemistryMultiple Choice Questions 7. A radioisotope of thorium forms protactinium-231 by beta-emission. What is the mass number of the radioisotope of thorium? A. 230 B. 231 C. 232 D. 235 B. Answer
Higher Chemistry Unit 3 - Section 6 Nuclear ChemistryMultiple Choice Questions 8. Phosphorus-32 is made by neutron capture for use as a tracer in phosphate fertilser. From which of the following ioisotopes is phosphorus-32 made by neutron capture? A. B. C. D. B. Answer
Higher Chemistry Unit 3 - Section 6 Nuclear ChemistryMultiple Choice Questions 9. The above process represents A. nuclear fission B. proton capture C. neutron capture D. nuclear fusion D. Answer
Higher Chemistry Unit 3 - Section 6 Nuclear ChemistryMultiple Choice Questions 10. Two one gram samples of radium and radium oxide both contain the same radioisotope of radium. The intensity and half life of the radioisotope are compared. Which line below gives the correct comparison? Intensity of radiationHalf-life A. same different B. same same C. different same D. different different C. Answer
