How many unpaired electrons are there in the complex ion [CO(NO3)5]¯? For this in the nitrate ligands produce a very strong crystal field. O a. 5 O b. 1 O c. 4 d. 3 O e. 2

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Chapter20: Nuclear Chemistry
Section: Chapter Questions
Problem 20.28QP
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A patient is given a 60.-mg dose of technetium-99m (half-life 6.0 h) to treat a brain cancer. How much of it will remain in the
body after 24 h?
7.5 mg
1.5 mg
0.75 mg
3.8 mg
4.5 mg
Transcribed Image Text:A patient is given a 60.-mg dose of technetium-99m (half-life 6.0 h) to treat a brain cancer. How much of it will remain in the body after 24 h? 7.5 mg 1.5 mg 0.75 mg 3.8 mg 4.5 mg
How many unpaired electrons are there in the complex ion [Co(NO3)5]¯? For this ion the nitrate ligands
produce a very strong crystal field.
O a. 5
b. 1
O c. 4
O d. 3
O e. 2
Transcribed Image Text:How many unpaired electrons are there in the complex ion [Co(NO3)5]¯? For this ion the nitrate ligands produce a very strong crystal field. O a. 5 b. 1 O c. 4 O d. 3 O e. 2
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