A sample of sodium-24 was administered to a patient to test for faulty blood circulation by comparing the radioactivity reaching various parts of the body. What fraction of the sodium 24 nuclei would remain undecayed after 12.0 h? The half-life is 15.0h. If a sample contains 6.0 ?g of 24Na, how many micrograms remain after 12.0 h?
This question was answered on: Jul 11, 2017
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