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- 1) Complete the following nuclear fission reaction of thorium-232. 232Th + n → 99Kr + 124Xe + ? a) 4He b) 10B c) 10n d) 11n e) 11B 2) Calculate the energy released in the reaction. The atomic masses are 232Th = 232.038051 u, 99Kr = 98.957606 u, and 124Xe = 123.905894 u. (Express your answer to five significant figures).Identify the daughter nuclide, the type of decay (for natural transmutations) and the nuclear reactiond) A radioactive source has an activity of 3.6x107 Bq due to the decay of a radioisotope with a half-life of 7250 years. Calculate i) The decay constant ii) The initial number of atoms present.
- 4) Calculate the binding energy per nucleon for "Fe using the Weizsäcker formula.(b) The deuteron is an 'iso-singlet'. Calculate the ratio of the cross-sections for the following reactions: i. p+p+d+n+ ii. p+nd+nº iii. n+nd+π¯1. Calculate the binding energy per nucleon of ¹08 Ag. (Given: Rest-mass of 108 Ag = 107.905092 u.)
- Question 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.The nuclide 198 Au, with a half-life of 2.70 d, is used in cancer therapy. What mass of this nuclide is required to provide an activity of 263 Ci? Number UnitsIdentify the daughter nuclide, the type of decay (for natural transmutations) and the nuclear reaction
- 7) A gold coin has a mass of 8.0g. Assume that the gold coin is made entirely of 197- Au atoms. (Rest-mass of Au-197 = 196.967 u). Calculate the number of atoms in 8.0 g of 197 - Au. Calculate the nuclear binding energy per atom of 197-Au. Calculate the nuclear energy that would be required to separate all the neutrons and protons in this gold coin from one another. (a) (b) (c)3. Explicitly calculate the binding energy and binding energy per nucleon for ®0 by comparing the mass of the atom to the sum of the masses of the constituent protons, electrons, and neutrons. You may ignore the binding energy of the electrons in the problem. [MeV]