Which of the following phases of dental amalgam has minimum strength? O a) Gamma 1 O b) Gamma 2 O c) Gamma 3 O d) Both a and b
Q: A hypothetical element has two main iso- topes. One has a mass of 73 amu and the other has a mass of…
A: Solution: Given Values, Isotope 1-mass =73 amuIsotope 2-mass =75 amuAtomic weight =73.80…
Q: https://www.walter-fendt.de/html5/phen/decaychains_en.htm Read the page, learn about the difference…
A: (a) Alpha decayAlpha radiation consists of a helium nucleus and is emitted when heavier nuclei decay…
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A: Alpha particle is helium nucleus hence a heavy particle, and it has a very short range. Alpha…
Q: https://www.walter-fendt.de/html5/phen/decaychains_en.htm A)Uranium -Radium series. Click on “next…
A: always remember the decay process in which helium nucleus ( 42 He) is present; it is alpha decay and…
Q: 4) Strontium-90 is a radioactive isotope with a half-life of 29 years. Strontium-90 is a major…
A: Half life of strontium 90= 29 years
Q: 10. Discuss some factors you need to consider when the activity is lower than the MDA?
A: When the activity is lower than the minimum detectable activity (MDA), there are several factors…
Q: How do Urainum-235 split easily when it captures an additional neutron? It says that when a free…
A:
Q: Once again, the 3-He formed in the middle reaction has less mass than the 2-H and 1-H that fused to…
A: Here it is just asking to calculate the mass defect of nuclear reaction inn which 3 He is formed…
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A: To solve this problem, we need to use the concept of half-life and the relationship between the…
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A: Half life ( T ) = 5.25 years Initial amount of sample = No Final amount of sample ( N ) = No / 3
Q: 13. After two half-lives, how much of the original sample would remain? 50% 6.25% 12.5% 25%
A:
Q: 5. An archaeologist on a dig finds a fragment of an ancient basket woven from grass. Later, it is…
A: Given:- An archaeologist on a dig finds a fragment of an ancient basket woven from grass. The…
Q: A 250g sample of Calcium-47 has a half-life of 4.536 ????. How much Calcuim-47 remains after six…
A: Given data: Initial amount of calcium-47 (N0) = 250 g Number of half-lives (n) = 6 Required: The…
Q: Cobalt-60 has many medical applications. If the half-life of cobalt-60 is 5.25 years, how long after…
A: Given data: The half-life of the cobal-60 is T=5.25 years The ratio of the final to intial sample…
Q: A layer of peat beneath the glacial sediments of the last ice age has a carbon-14/carbon-12 ratio…
A: Given: Ratio carbon-14carbon-12=21.2%=21.2100=0.212 Half life of carbon-14, t12=5730 yrs Required:…
Q: What is the role of electrical forces in nuclear fission?
A: “Since you have posted multiple questions, we will provide the solution only to the first question…
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- a) Define the term “radioisotope”. b) Define the term “radiopharmaceutical”.https://www.walter-fendt.de/html5/phen/decaychains_en.htm 1) Thorium series. Click on “next decay” to follow the decay chain of Thorium.a. Write down the full decay chain.b. How many alpha decays and how many beta decays are involved?2) Neptunium series. Click on “next decay” to follow the decay chain of Neptunium. What is the enddaughter nucleus for this decay chain?Referencing the periodic table, determine the number of neutrons and protons in each of the following Isotopes: a) Li-7 b) C-14, c) Fe-58 , d) Hg-201, and e) Pu-239. Explain your answers
- 15. Consider the following nuclear reaction and identify the missing entity in the balanced reaction. 232Th 228Ra + ?? a) He b) +ie c) -e d) n e) ipThere still seems to be an issue with this answer. The database is saying it's wrong.An air bubble frozen in ice is extracted from many meters below the surface in the arctic. The sample of air is found to have an activity per gram of carbon that 0.8% that of air today. About how long ago was this pocket of air frozen? 35,000 years ago 40,000 years ago 46,000 years ago 52,000 years ago 58,000 years ago
- A skull fragment from an archeological dig is found to have an activity per gram of carbon that is about 6.3 % of what is found in currently living people. If the half-life of C-14 is 5730 years about how long ago was this person alive? a) 18,000 years ago b) 23,000 years ago c) 29,000 years ago d) 34,000 years ago e) 40,000 years ago90 6. Because of its chemical similarity to calcium, Sr can collect in the bones and present a health risk. What percentage 90 90 of Sr present initially still exists after 47.5 y?(The half life of Sr is 28.8 years) 38 % 60 so £60 3 ssf60 sk f60 ssfcan you convert GPE into KE? if yes how ?