College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Transcribed Image Text:3A. a) Write the equation for the alpha decay of radium-159 b) Write the
element that is formed in the alpha decay of radium-159.
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- 3C. Write the equation for the beta-positive decay of Potassium-40. b) Write the element that is formed in the beta-positive decay of Potassium- 40. Your answerarrow_forward3. An ancient club is found that contains 150 g of pure carbon and has an activity of 4.5 decays per second. Determine its 14 C age assuming that in living trees the ratio of atoms is about 1.20 x 10-12. Note that the half life of carbon-14 is 12C 5700 years and the Avogadro number is 6.02 x 1023. years cei16 octarrow_forward3. The following graph shows the amount of mg for a radioactive substance. a. Determine the initial quantity of the material. b. Determine the half-life for this substance. 200 180 160 140 120 100 80 60 40 20 c. Determine the percent decrease per hour. d. Determine how long it will take for only 25 mg of the substance to remain. 10 (12,50) 15 20 25 30 W 35 40arrow_forward
- Bq. Determine the half-life (in s) of a radioactive sample that contains 1.50 x 1015 atoms and has an activity of 6.60 x 101arrow_forward32NE decays by B decay. Which of these is the correct reaction? 10 Select one: of 1 O a. 3 Ne B + 3F 10 1. tion O b.Ne → °B+ 3}F 10 O c. Ne → _°ß+ {Na B+Na. 32 11 10 O d. Ne B+ Na 33 Na 08 10 2 The half-life of 2 U is 70 years. How long would it take for all but 232arrow_forwardIf 88 (atomic number) 228 (atomic mass) ?? is produced, determine the parent isotope for each of the following types of decay and justify your answer. a) alpha decay b) beta negative decay c) beta positive decayarrow_forward
- Uranium-235 decays spontaneously by nucleon emission. a) Write a balanced equation to show the decay of Uranium-235, 2U, that leads to the formation of Uranium- 235 234 and name all the particles involved b) Write a balanced equation to show the decay of Uranium-235, U, that leads to the formation of 92 Thorium-231. Name all the particles involved.arrow_forwardQ1)Complete the radioactive decay equations: a)89AC225 87 Fr221 + .. b)26Fe56 27 Co56 + ... C)28N163 29 Cu.... + Q2)The half life of radium is 5 x 1010s .find the decay constarrow_forward
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