Scandium 44Sc decays by emitting a positron. what is the product of the decay
What is the product of positron decay of radium-213? What is the product of beta decay of platinum-187? What is the product of alpha decay of gold-188? What is the product of gamma decay of polonium-222? Write out the reaction that shows carbon-13 undergoing electron capture.
In the rare decay , what is the momentum of the positron (e+)? Assume the + ? decays from rest. (m?+=139.6 MeV/c2, m? ? 0, me=0.511 MeV/c2)
233Pa decays by beta emission. The product of this reaction undergoes alpha decay. What is the product of the second decay reaction?
39Cl decays by emitting a ?- particle. This decay process has a half-life of 5.56×101 min. If the initial mass of a pure sample of this isotope is 8.47 µg, determine the number of 39Cl nuclei remaining after 6.010×102 min. Report your answer to three significant figures in scientific notation.
Medical Physics often use the isotope 18F, which decays by positron emission. (i) What mechanism competes with positron emission during nuclear decay(it is more important in heavier isotopes than in light isotopes like 18F)? (j) During positron emission, another particle also is ejected from then nucleus. What is this particle?
1.Potassium-40 decays by three pathways: β decay, positron emission, and electron capture. Write a balanced equation for the positron emission process. 2.The concentration of NaCl in red blood cells is approximately 598.00 ppm. For a NaCl solution, assume the solution completely dissociates giving a van ’t Hoff factor of 2. Calculate the osmotic pressure of this solution at body temperature (37°C). _atm
A particular type of fundamental particle decays by transforming into an electron e- and a positron e+. Suppose the decaying particle is at rest in a uniform magnetic field B→ of magnitude 3.84 mT and the e- and e+ move away from the decay point in paths lying in a plane perpendicular to B→. How long after decay do the e- and e+ collide? Assume an electron and a positron are non-relativistic.
35. A certain radio-nuclide decays by emitting an alpha-particle. What is the difference between the atomic numbers of the parent and the daughter nuclides? 36. What is the difference in mass number between the parent and daughter nuclides after a beta-decay process?
14C decays by emitting a β- particle. This decay process has a half-life of 5.72×103 yr. Answer the following questions about this process and report all answers to three significant figures. A. Determine the initial activity (in dis/yr) of a 5.81 mg sample of this isotope. B. Determine the time (in yr) that it takes for the activity of 14C to decrease to 8.39×107 dis/yr.
I know the answer is A but why? Phosphorus-30 decays by positron emission. The product is silicon-30 phosphorus-29 sulfur-30 sulfur-29