Radiation Quiz 3

Radiation Quiz 3 - No, because gamma radiation is just...

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Chapter 9 Chapter 9 Nuclear Radiation Practice Quiz 3 Name : ____________________________________ 2 pts 1. What are the symbols for Beta radiation? β and -1 e 0 2pts 2. What is fusion? Is two lighter nuclei coming together to make a heavier nucleus and giving off energy 2 pts 3. Complete the following nuclear equations 235 92 U + 1 0 n ----- > 143 54 Xe + 3 1 0 n + 90 Sr 38 2pts 4. When a radioactive nucleus give off gamma radiation does the mass number or atomic number of the new nucleus different? And why?
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Unformatted text preview: No, because gamma radiation is just energy; once gamma radiation is given off the unstable nucleus becomes stable keeping the same mass and charge 2pts 5. Iodine-131 is a beta emitter and has a half-life of 8 days ( error, not 8.0 should be exact number) how many days will it take for 16 gram sample of iodine-131 to decay to 1 gram? (ans = 32 g) 8 days 8 days 8 days 8 days I-131 I-131 I-131 I-131 I-131 16 g 8 g 4 g 2 g 1 g...
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