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Unformatted text preview: 83. The first two facts indicate that Pu is not a significant threat outside of the body. However, if Pu gets inside of the body (ingested or inhaled), the electrochemical data indicate that it can be easily oxidized to Pu 4+ : Pu -> Pu 4+ + 4e-, E o = 1.28 V The large positive potential indicates that oxidation of Pu is quite favorable. Now, because the chemistry of Pu 4+ is similar to Fe 3+ , Pu 4+ will tend to concentrate in tissues where Fe 3+ is found. For example, Pu 4+ could concentrate in bone marrow where red blood cells are produced (recall, hemoglobin has a central Fe 3+ ion). Once concentrated there, the alpha particles produced from its decay can do significant damage to the tissue. 84. 3270 85. B 86. C 87. D 88. B 89. E 90. D...
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- Fall '08
- red blood cells, Prime number, Alpha particle, Beta particle, pu