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- The stable nuclei 36Ar and 76Se both differ by 20 in atomic number from 56Fe, which lies at the peak of the binding energy per nucleon curve. Find B/A for both 36Ar and 76Se. Which one has the larger B/A? Why is this to be expected?6. One of the many isotopes used in cancer treatment is 798 Au, with a half-life of 2.70 d. Determine the mass of this isotope that is required to give an activity of 225 Ci. mg cer16 cei t would beQuestion 1: The table shows two isotopes of potassium and two isotopes of calcium. 39K 39 Ca Stable ß* decay 38.96371 38.9707 Type of emission Mass of neutral atom / u Number of electrons Number of protons Number of neutrons Total mass/u Mass defect / u Binding energy / J 42K ß decay 41.9624 Mass of the neutron = 1.008665 u 19 19 ta min 23 42.34797 0.38557 5.76 x 10-11 2 051 oqque 42 Ca stable 41.95863 Mass of the electron = 0.000549 u Mass of the proton = 1.007276 url millons voled pringle bre noljenimaxe al prderobny v nollenimexe erit lo anpitibnco art di ballamos svar en talean blow tert elshatem vos maxe erii otni triquonion aver a) Use data about potassium-42 to explain the concept of mass defect. oo will teanu snimaxe edt sot jaqeq maxe eft overmat ym of 820308 ever b) Complete the table and to calculate the mass defect and binding energy of 39K. Show your calculations in the space below.
- Both 1)Given a half-life of a radioactive source is 435 years. Calculate the time taken for its activity to reduce from 4.5 Ci to 0.14 Ci? 2) Equation shows nuclear reaction of gamma radiation which incident on an isotope helium. Calculate the energy of the gamma ray in MeV unit? (Given mass of Helium = 3.016029 u, mass of proton = 1.007276 u and mass of neutron = 1.008665 u) 23??+?→211?+01?2H is a loosely bound isotope of hydrogen, called deuterium or heavy hydrogen. It is stable but relatively rare — it form only 0.015% of natural hydrogen. Note that deuterium has Z = N, which should tend to make it more tightly bound, but both are odd numbers. Calculate BE/A, the binding energy per nucleon, for 2H in megaelecton volts per nucleon.56 (5) Fe has a mass defect of 0.58872 amu. What is its binding energy per nueleon? 26 (6) For the nuclear reaction 14 4. 17 N. +. He -> H. Calculate the energy in joules associated with the reaction of one atom of nitrogen-14 with one atom of He-4, given that the isotopic masses in amu are: N-14 (14.00307); He-4 (4.00260); O-17 (16.99991); and H-1 (1.007825).
- It is known that the mass of the alpha particle He is 4.002603u, Estimate the binding energy and binding energy per nucleon obtained directly from the reaction channel: I. 2р + 2n He II. Proton emission (Sp) Neutron emission (S,) 1.008665u dan m, I. = 1.007825u, 1u = 1.67 x 10-27kg.24 Mg and 12 63 Cu. (For the atomic masses, see this table. Enter your answers to at least two decimal places.) Find the average binding energy per nucleon of 29 (a) 24 Mg 12 8.26 MeV/nucleon (b) 63 Cu 29 8.3 Your response is within 10% of the correct value, This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermQuestion 4 Use the following data to calculate the binding energy per nucleon in MeV of the Rhodium-103 nuclide Mass of Rh atom = 102.905503 u 103 45 %3D Mass of proton = 1.007276 u Mass of neutron = 1.008664 u %3D Mass of electron = 0.00054858 u %3D 1u = 931.494 MeV [2.2] Question 5