On absorption of a single neutron, an isotope of uranium U-235 can undergo fission into barium Ba-141 and krypton Kr-92, some neutrons, and 173 MeV of energy. The masses of these nuclei are, mU-235 = 235.044 amu, mBa-141 = 140.914 amu, and mKr-92 = 91.926 amu. Find the number of neutrons given off in this nuclear reaction.

Identification and Characterization of Unstable and Stable Nuclei Nuclear stability can in general be predicted based on the following considerations: • Nuclei with 84 protons or more are unstable. Nuclei containing a magic number of protons and/or neutrons tend to be stable. • Stable nuclei often contain even numbers of protons and/or neutrons. These factors are reflected in the given graph (Figure 1), which shows the valley of stability as a function of number of neutrons and protons. Figure 110 100 90 sulognau jo zaqung 80 70 60 50 40 30 201 10 0 0 Belt of stability www.x N 1:1 neutron-to- proton ratio 10 20 30 40 50 60 70 80 Number of protons "Magic" numbers A magic number is the name given to certain numbers of protons or neutrons that have a high correlation to stability in nuclei: magic numbers of protons: magic numbers of neutrons: ▼ Part A A plot of the number of neutrons versus the number of protons for all known stable nuclei, represented by reddish brown dots on the graph,…

A certain nucleus has a an atomic mass of 248.8 u and can release 178 MeV if it undergoes fission. How much energy in MeV would be released if 2.3 kg of this material undergo fission?

Why are so many health hazards associated with fission fragments that are produced during the fission of heavy nuclei?

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Rn-222 undergoes alpha decay and produced -6.7x109 kJ/mol of energy in the process. Determine the actual mass (in g/mol) of the produced Po-218 nucleus.  Mass of Rn-222 = 222.017 g/mol; Mass of He-4 = 4.003 g/mol Mass of proton = 1.0078 amu; Mass of neutron = 1.0087 amu Speed of light = 3.00 x 108 m/s 1 amu = 1 g/mol = 1.66 x 10-27 kg 1 MeV = 1.60 x 10-13 J

4. What is the energy released in this nuclear reaction 0+n → C+He? (The atomic mass of 0 is 16.999132 u, and that of 4C is 14.003241 u) MeV 19 0 oof

1.Please tell me what element 238U becomes when it undergoes alpha decay 2. Please tell me what element 32P becomes when it undergoes beta decay 3. What type of radiation is the most damaging to living creatures? Why?

What is the daughter nuclide when U-238 experiences alpha decay? (Write your answer as a symbol-mass number)

The nuclide 192Pt78decays to  1880s76 by alpha emission. The mass of  192Pt78 is 191.96146 u  and the mass of  188Os76 is  187.9560  u. Calculate the energy effect accompanying the decay.