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Unformatted text preview: Why are gamma rays not deflected? 13. The alpha particle has twice the electric charge of the beta particle but, for the same kinetic energy, deflects less than the beta in a magnetic field. Why is this so? 14. Which type of radiation alpha, beta, or gamma produces the least change in mass number? In atomic number? 15. Just after an alpha particle leaves the nucleus, would you expect it to speed up? Defend your answer. 16. Can it be truthfully said that, whenever a nucleus emits an alpha or beta particle, it necessarily becomes the nucleus of another element? 17. When food is irradiated with gamma rays from a cobalt-60 source, does the food become radioactive? Defend your answer. 18. The age of the Dead Sea Scrolls was found by carbon dating. Could this technique apply if they were carved in stone tablets? Explain....
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- Spring '09