Iodine 131 (t 8 04 days), a emitter, is used to treat thyroid cancer (a) Write an equation for the decomposition of 131 I (b) If you ingest a sample of NaI containing 131 I, how much time is required for the activity to decrease to 35 0 of its original value ...

a The equation for the decomposition of I is I Xe This equation represents the beta decay of I where ...

Iodine-131 (t = 8.04 days), a emitter, is used to treat thyroid cancer. (a) Write

Question:

Iodine-131 (t_½ = 8.04 days), a β emitter, is used to treat thyroid cancer.
(a) Write an equation for the decomposition of ¹³¹I.
(b) If you ingest a sample of NaI containing ¹³¹I, how much time is required for the activity to decrease to 35.0% of its original value?

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