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Denia Strontium-90 is a radioactive byproduct of nuclear reactors (and nuclear weapons) biologically much like calcium (also in Group II on the periodic table). Consequentially, it can accumulate in the milk of mammals and then into the bone when ingested. This is a particular concern when children ingest milk in significant amounts that has been contaminated by 90Sr. The public first became aware of this potential threat decades ago when the United States was involved in atmospheric atomic bomb testing; one of the major concerns about health impacts of nuclear tests regarded public exposure related to the intake of 90Sr in contaminated milk. By what type of nuclear process (reaction) is it formed from U-235? First, write a reaction showing this, assuming that the reaction was initiated by an energetic neutron colliding with the uranium nucleus and resulted in the formation of a Sr-90 nuclide plus three additional neutrons, plus some other product (see fig). Next, write two reactions: both for Sr-90 decay AND of the decay of its daughter. 7% U-233 5% 3% 1% 90 100 89 90 Pu-239 130 140 65%U 35%Pu 130 120 U-235 6% 4% 2% 158 160

Denia Strontium-90 is a radioactive byproduct of nuclear reactors (and nuclear weapons) biologically much like calcium (also in Group II on the periodic table). Consequentially, it can accumulate in the milk of mammals and then into the bone when ingested. This is a particular concern when children ingest milk in significant amounts that has been contaminated by 90Sr. The public first became aware of this potential threat decades ago when the United States was involved in atmospheric atomic bomb testing; one of the major concerns about health impacts of nuclear tests regarded public exposure related to the intake of 90Sr in contaminated milk. By what type of nuclear process (reaction) is it formed from U-235? First, write a reaction showing this, assuming that the reaction was initiated by an energetic neutron colliding with the uranium nucleus and resulted in the formation of a Sr-90 nuclide plus three additional neutrons, plus some other product (see fig). Next, write two reactions: both for Sr-90 decay AND of the decay of its daughter. 7% U-233 5% 3% 1% 90 100 89 90 Pu-239 130 140 65%U 35%Pu 130 120 U-235 6% 4% 2% 158 160

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Strontium-90 is a radioactive byproduct of nuclear reactors (and nuclear weapons) that behaves biologically much like calcium (also in Group II on the periodic table). Consequentially, it can accumulate in the milk of mammals and then into the bone when ingested. This is a particular concern when children ingest milk in significant amounts that has been contaminated by 90Sr. The public first became aware of this potential threat decades ago when the United States was involved in atmospheric atomic bomb testing; one of the major concerns about health impacts of nuclear tests regarded public exposure related to the intake of 90Sr in contaminated milk. By what type of nuclear process (reaction) is it formed from U-235? First, write a reaction showing this, assuming that the reaction was initiated by an energetic neutron colliding with the uranium nucleus and resulted in the formation of a Sr-90 nuclide plus three additional neutrons, plus some other product (see fig). Next, write two reactions: both for Sr-90 decay. AND of the decay of its daughter. 90 100 130 140 7% U-233 Pu-239 65%U 5% 35%Pu M 3% 90 10120 1% 89 U-235 6% 4% 2% 150 160
Transcribed Image Text:Strontium-90 is a radioactive byproduct of nuclear reactors (and nuclear weapons) that behaves biologically much like calcium (also in Group II on the periodic table). Consequentially, it can accumulate in the milk of mammals and then into the bone when ingested. This is a particular concern when children ingest milk in significant amounts that has been contaminated by 90Sr. The public first became aware of this potential threat decades ago when the United States was involved in atmospheric atomic bomb testing; one of the major concerns about health impacts of nuclear tests regarded public exposure related to the intake of 90Sr in contaminated milk. By what type of nuclear process (reaction) is it formed from U-235? First, write a reaction showing this, assuming that the reaction was initiated by an energetic neutron colliding with the uranium nucleus and resulted in the formation of a Sr-90 nuclide plus three additional neutrons, plus some other product (see fig). Next, write two reactions: both for Sr-90 decay. AND of the decay of its daughter. 90 100 130 140 7% U-233 Pu-239 65%U 5% 35%Pu M 3% 90 10120 1% 89 U-235 6% 4% 2% 150 160
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