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- 1. Find the total binding energy for Francium, 223Fr (atomic mass = 223.019733 u). 87 MeV 2. Calculate the average binding energy per nucleon for Chromium, 2Cr (atomic mass = 51.940509 u).1. What is the binding energy per nucleon for ?? 1327 (Aluminum – 27)? Note: A neutral ?? 1327(Aluminum – 27) atom has a mass of 26.981539 u; a neutral hydrogen atom has a mass of 1.007825 u; a neutron has a mass of 1.0086655 u; and a proton has a mass of 1.007277 u. Also, 1 u = 931.494 MeV/c2.a. 8.3 MeVb. 6.7 MeVc. 5.4 MeVd. 3.4 MeVe. 2.8 MeVThe number of radioactive atoms in a sample decay as the emission of radiation proceeds and this may be described by an exponential decay N(t) = N0exp(-t/τ) where τ is the decay time. What is the decay time τ if the half-life t1/2 = 3hrs? Select one: a. 8.15 hours b. 3 hours. c. 90 mins. d. 260 mins.
- 6. Given the information below, how much energy is emitted in the reaction? 22.9945 mass ofNe 23 1Ne Na +e + v 1 mass of Na 22.9898 u 11 mass of Çe 0.00055 u (A) 3.87 MeV (B) 4.15 MeV (C) 4.38 MeV (D) 4.89 MeVB3. In the alpha decay of uranium 232U → 228Th + He, how much kinetic energy (in MeV) will 90 the thorium atom have. Given that Q = 6.46 MeV and the atomic mass of 220Th is 228.028731u. Express the values to 3 significant figures, if necessary.The radium isotope 226 Ra has a hall-life of 1600 years. A sample begins with 3.50x1010 226 Ra atoms. Y Part C N Submit How many are left after 400 years? 195] ΑΣΦ Submit Request Answer Part B How many are left after 2000 years? N= 1971 ΑΣΦ Submit How many are left after 35000 years? Request Answer ΜΕ ΑΣΦΑ Request Answer BAC ? ?
- 5. What is the energy released in this Bt nuclear reaction Al → Mg+'e? (The atomic mass of Al is 23.999939 u and that of Mg is 23.985041 u) X 13.37) MeVNeeds Complete solution. Plz.a. Compute the binding energy of the reactants and of the products in the nuclear fusion reaction 2H + 6LiS 4He + 4Heb. What is the change in binding energy per nucleon in this reaction?
- 5. A sample of protactinium -234 of mass 100 g has a half-life of G-7 hours. A. what praction of the sample has not decayed after 20-1 hours? B. What is the mass of undecayed protactinium -234 after this period of time...1. Find the total binding energy for Francium, 223Fr (atomic mass = 223.019733 u). X 1603.27 MeV 2. Calculate the average binding energy per nucleon for Chromium, Cr (atomic mass = 51.940509 u). MeV43. During a particular nuclear reaction, some mass is converted to energy. If the reactants in this process have 0.00562 u more mass than the products, calculate the energy of the products that comes from the reactants and characterize the reaction as endothermic or exothermic. A. 5.2 MeV, exothermic B. 5.2 MeV, endothermic C. 1.9 MeV, exothermic D. 1.9 MeV, endothermic