= lo hes. Howw much tme is req in decay of frac tiom. 2 20
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Q: need help with: a,b&c
A: (a) The reaction is given by,
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- 5- The decay chain is 11 BC 211 Po > 207pb what tyfe of each dosorw Cotebond decay does to?-The mean lifetime of each deay is 2-14 min 0. siba rukectively 4 on intal sambe is Conepond cnd 0.5168 all amolate cas a fertentase) Pure Bi Find delative all Bis 31lpo ahd 207 2llpo and of Pb aftes 2 min.piece of radioactue materid contain t0 Ata Catdin Instant, a 12 atom Ue h7 life the material is 39 dsys O ealculate the mimbrer of disrutegrstion in the first Second O How Long wil elqpse befoce to aetomi O What is th count rate at this time.Please help me with the following question and pls make sure its correct 100% its important, thanks Question: Answer the following question and be sure to review Example 30.4 before attempting these problems. Part A. A 11,460-year-old archeological specimen has a 14C activity of 6.5×10−2 Bq. What is the carbon mass of the specimen? Express your answer with the appropriate units. ( possible in grams) Part B . A 7.0×10−2 kg tumor is treated with a high-energy proton beam. If the equivalent dose delivered to the tumor is 1900 rem, how much energy did the tumor absorb? Express your answer with the appropriate units. ( in J)