sample A B U D symbol 11 6 131 53 C 227 radionuclide I 89 170 69 Ac Tm half-life 20. minutes 8.0 days 22. years 129. days initial radioactivity (choose one) Y (choose one) (choose one) ✓ (choose one) ✓ time for amount of radionuclide to decrease to 1/4 of initial amount minutes days years days

Q: (c) OH alcohol * II.. 1. SOC12 2. 1 equiv. NaOEt 3. Br2 4. 2 equiv. NaNH2/NH3 5. H₂/Lindlar Sn ?…

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Q: a OH alcohol 1. SOC1₂ 2. 1 equiv. NaOEt 3. Br2 4. 2 equiv. NaNH2/NH3 5. H₂/Lindlar

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