9. In the figure below, identify the regions where the following decay pathways domina a. Alpha decay (a) b. Positron decay (8+) C. Beta decay (B) 10. What type of nuclides does the black line represent in the figure? N (Number of Neutrons)
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- g) Complete the following decay equations and state what type of decay is taking place. i) 232 Th 228 Ra + He 90 ii) 131 | Xe e 54 -1 53 iii) Does the equation below represent alpha or beta decay, explain your answer? 185 Au decays to 181 Ir 79 772a) What is the average 226Ra alpha particle heat power output of 1 tonne of New Zealand soil? 2b) Why does soil not heat up from the energy of alpha decay? 2c) In our soil 226RA is, on average, found at a concentration of around 1 part per million, by mass. How many grammes of 22°RA are in 1 tonne of soil? 2d) How many tonnes of soil would need to be processed to obtain sufficient 226Ra to create a sample with a 1W alpha energy output? Is this practical? 2e) 22°Ra is part of the decay chain of 238U. Will the concentrations of the other decay products (in ppm, say) be identical to that of 22°RA? Explain your reasoning. 2f) Explain how radioactive material in New Zealand soil could get in to the human body and discuss the health risks of alpha emitting radionuclides.Explain each of the following in terms of nuclear stability or which is stable, support your answer) a. 84 Po 212decays by alpha emission b. Bi 214 decays by beta emission
- 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).Complete the following nuclear reactions. (Include enough information to unambiguously identify the missing species.) see image attachedIdentify the daughter nuclide, the type of decay (for natural transmutations) and the nuclear reaction
- Help me to solve this proplemsWhat is the nuclear equation for 224RA (alpha decay) www 224 a. Ra - Po + He 222 84 b. 2 Ra 2Rn + He 220Rn + He -> 88 98 c. 2Ra 224 222RN + He 1) 98 d. 8Ra 224RA → 220Th + He1. Use the semi empirical mass formula to compute: 64 64 i) ii) The mass difference between 29 Cu and 30 Zn. The binding energy of the last neutron in 207Pb.
- All the nuclides below undergo nuclei decay, write an equation for each process with an explanation. a) complete and explain the alpha decay for the below nuclides. i) AX → ii) 238U →>> 92 b) complete and explain the ß decay for the below nuclides. i) IN → ii) ¹4C → Completed forms to be made available for external moderation. c) complete and explain the B* decay for the below nuclides. i) 4X → ii) ¹3/N →Identify the daughter nuclide, the type of decay (for natural transmutations) and the nuclear reactionQuestion 13 What is the nuclear equation for 22 Ra (alpha decay) a. Ra → Po+ ¿He 88 224p b. Ra → 2Rn + He 224 88 220 86 c. Ra → Rn + ¿He 224 88 d. 2Ra → 28TH + ¿He 224 O a O b Previous