Question

(c) The isotope phosphorous-32 (32P) is a beta (8-) radioactive decay emitter with a hall- life of 14.5 days.

(v) Calculate the energy in units of MeV for the energy released in the decay of one 32 15 P nucleus. (vi) Determine the total energy, in units of MeV, that has been released by the sample in this 3-day period of time.

Answer 1

An)it i 32 3 2 S e y 5 1 6 andn eun 22 No m;c mi mpu B1-g39 3 1 15 xmle mf mi- mnuc mCe (-?)uat 21.920 1S&me) 3 m mf mfemc 2 2 -3 2. Mavi 7 MeV

vi ded inca y hawe not weght haple Yhe det it be grans asume 22 imole of is P sanple 31.98 a Nou IS moles in No sample X6022x 31 9 6 ns in 2 No d atom atns xX 1.88 3 x10 Now we now that t 145 days Nowt n2 day a 2 o.0438 ne ate ft afte docoy Now N al N No A aemi

for 3-day eriod N X82 3 xD 0.0483 22 X e N 6314 Xlox atom 1 Aho ms x 1883x10*- 6314xio22) X514x2 atoms. leane.1 Mev cao deay ab ms 2:516 X10 xxato lies Mev Ay 34302 X 10 xN put malue mple luta deta eningy Now Can Mam and daned
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