1 4 7 lodine-123 is a radioactive isotope used to study thyroid gland functions. It decays in a first-order process with a half life of 786 min. You receive a sample for some of your experiments, but you have to work fast before it is all gone. Calculate the NUMBER OF HOURS it will take for 90% of your sample to decay. +/- 2 LO 5 Question 16 of 20 8 J hrs 3 6 O Submit Tap here or pull up for additional resources X C x 100

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Chapter1: Chemical Foundations
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8:40
<
1
4
lodine-123 is a radioactive
isotope used to study thyroid
gland functions. It decays in a
first-order process with a half life
of 786 min. You receive a sample
for some of your experiments,
but you have to work fast before
it is all gone. Calculate the
NUMBER OF HOURS it will take
for 90% of your sample to decay.
7
2
+/-
LO
5
Question 16 of 20
8
| hrs
O
30
3
9
0
Tap here or pull up for additional resources
6
Submit
23
X
с
x 100
Transcribed Image Text:8:40 < 1 4 lodine-123 is a radioactive isotope used to study thyroid gland functions. It decays in a first-order process with a half life of 786 min. You receive a sample for some of your experiments, but you have to work fast before it is all gone. Calculate the NUMBER OF HOURS it will take for 90% of your sample to decay. 7 2 +/- LO 5 Question 16 of 20 8 | hrs O 30 3 9 0 Tap here or pull up for additional resources 6 Submit 23 X с x 100
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