causes orbitals electens to h te r. LoSs of level 1s elechon following radioacti
ID: 697669 • Letter: C
Question
causes orbitals electens to h te r. LoSs of level 1s elechon following radioactive isotopes: (a) aluminum-26 (b) beryllium-7 (45 pts) Gamma Emission (a) What happens to the atomic number of an atom that undergoes gamma emission? (b) What happens to the atomic mass of an atom that undergoes gamma emission? (c) Write a nuclear equation that illustrates gamma emission no change in atomic number mass mber Mo (d) What is the relative magnitude of the energy of gamma rays and why are they used for cancer treatment? (68 pts) Radioactive Decay Series (a) What is a radioactive decay or disintegration series"? undesmpes to lower its ene Succossiom of steps a parent unstable welws vn (b) What do the terms parent, daughter, granddaughter, great granddaughter,... .refer to ? (c) For 238U the natural radioactive decay series in Fig 24.3, pg. 1062, list all the steps of the Tts to illustrate the decay steps, through gener on complete decay series. Ex:Explanation / Answer
f)
a)
26 Al 13 + 0 e -1 -------> 26 Mg 12
b)
7 Be 4 + 0 e -1 -------> 7 Li 3
c)
240 Pu 94 ------> 240 Pu 94 + gamma Ray ( High enrgy radiation)
c)
238 U 92 ------> 234 Th 90 + 4 He 2 (alpha ray decay) ------> 234 Pa 91 + 0 e -1 (beta aprticle) -----> 234 U 92 + 0 e -1 (beta particle) ------> 230 Th 90 + 4 He 2 (alpha particle) ------> 226 Ra 88 + 4 He 2 (alpha particle) -----> 222 Rn 86 + 4 He 2 -----> 218 Po 84 + 4 He 2 -----> 214 pB 82 + 4 He 2 -----> 214 Bi 83 + 0 e -1 (beta particle) ------> 214 Po 84 + 0 e -1 (beta particles) ------> 210 Pb 82 + 4 He 2 (alpha particle) ------> 210 Bi 83 + 0 e -1 (beta particle) -----> 210 Po 84 + 0 e -1 (beta particle) ------> 206 Pb 82 + 4 He 2 (alpha particle)
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