15 The nucleus of the isotope fluorine-18 has mass defect of 2.44x10^-28 kg. What is the binding energy of 18 F? 2.2x10^-11 J 7.3x10^-20 J 2.2x10^-20 J
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Q: 1.a. A 14-gram ovarian tumor is treated using a sodium phosphate solution in which the phosphorus…
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Q: A 14 g ovarian tumor is treated using a sodium phosphate solution in which the phosphorus atoms are…
A: Part (a) Basic Details The radiation dose that is received by the ovarian tumor depends on the ratio…
Q: A 14-gram ovarian tumor is treated using a sodium phosphate solution in which the phosphorus atoms…
A: Hey, since there are multiple questions posted, we will answer first question. If you want any…
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Q: A 14-gram ovarian tumor is treated using a sodium phosphate solution in which the phosphorus atoms…
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Q: A 14-gram ovarian tumor is treated using a sodium phosphate solution in which the phosphorus atoms…
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Q: A 14-gram ovarian tumor is treated using a sodium phosphate solution in which the phosphorus atoms…
A: Hey, since there are multiple questions posted, we will answer first question. If you want any…
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- [Review Topics] [References] Radioactive vanadium-48 decays with a half-life of 16.0 days. a. What is the value of k in s12 k = b. A sample contains 58.0 mg 48 t° V. How many decay events will be produced in the first second? Assume the atomic mass of 48 V is 48.0 u. decays/s c. A chemist obtains a fresh sample of 8V and measures its radioactivity. She then determines that to do an experiment, the radioactivity cannot fall below 25% of the initial measured value. How long does she have to do the experiment? days Submit Answer Retry Entire Group 4 more group attempts remaining2. A neutron causes 223Fr to change according to the following reaction: n +22³Fr →AX+y 87 87 The X nucleus subsequently undergoes - decay, and its daughter does too. What is the atomic mass number of the final nucleus? 60 ssf602 ssf60 ss. 60 ssf60% Ossi ssf60 ss f60 ssf60Problem 8: In a living organism, a fixed fraction 1.30 × 10-12 of 12C is the radioactive isotope 14C, which has a half life of 5730 y. What is the activity of the 14C in 1.8 g of 12C found in living tissue in Bq?Numeric : A numeric value is expected and not an expression.R = __________________________________________
- An unknown isotope has an atomic number, Z 15 and atomic mass number, A = 32. It decays via beta decay and emits an electron and antineutrino. %3D How many protons and neutrons are in the resulting daughter nuclide? o 16 protons 16 neutrons o 15 protons 17 neutrons o 13 protons 15 neutrons o 14 protons 17 neutrons o 14 protons 18 neutronsQuestion 4 Use the following data to calculate the binding energy per nucleon in MeV of the Rhodium-103 nuclide Mass of Rh atom= 102.905503 u Mass of proton = 1.007276 u Mass of neutron = 1.008664 u Mass of electron = 0.00054858 u 1u931.494 MeV [2.2]in the stable isotope of Potassium 39K there are 19 electrons, 19 protons and 20 neutrons. The mass of the neutral atom is 38.96371 u. Calculate: Total mass / u Mass defect / u Binding energy / J Binding energy / MeV Mass of the proton = 1.007276 u Mass of the neutron = 1.008665 u
- 1.a. A 14-gram ovarian tumor is treated using a sodium phosphate solution in which the phosphorus atoms are the radioative phosphorus-32 isotope with a half-life of 14.3 days and which decays via beta emision (RBE=1) with an energy of 1.71 MeV. Half of the sodium phosphate is absorbed by the tumor and deposits 9.0 J energy into it. The other half of the solution is absorbed throughout the patient's tissues, also depositing 9.0 J of energy into the 50.0 kg of body tissues. i. What is the dose ( in gray and rem) that the tumor receives? ii. What is the dose ( in milligray and rem) that the rest of the tissues receives? b. Photoelectrons from a material with a binding energy of 2.71 eV are ejected by 420-nm photons. Once ejected, how long does it take these electrons to travel 2.50cm to a detected device? c.The heating element in an electric kettle is rated as 2.0kW. If the waterin the kettle is at 1000.0 oC, what volume of water will be converted in to steam in…A radioactive sample with a half-life of 5.3 weeks has 1.04e+15 nuclides present in the initial sample. a) What is the initial activity of this sample? Bq b) How many days does it take for this sample to decay to 3.09e+14 nuclides? daysAn unlabeled container of radioactive material has an activity of 78 decays/min. Four days later the activity is 63 decays/min. A. Determine the half-life of the material. T = ? days B. How many days after the activity is 78 decays/min will it reach 10 decays/min? t = ? days
- C ! J 1 O F1 A 5. What is the energy released in this B+ nuclear reaction CIS+e? (The atomic mass of Cl is 31.98569 u and that of 32S is 31.972071 u) X-9.216 MeV 2 Fő: F2 W S # 3 80 F3 E $ 4 F4 R TI % 5 G A 6 Submit Assignment MacBook Air & 7 H F7 8 DII FB K Show my other submissions F9 0 F10 F11 +Determine the nucleus density (in kg/m3) of the following four isotopes.4He (m = 4.00260325415 u) = 2.307e17 kg/m^321Ne (m = 20.99384668 u) = ______ (CANNOT BE 2.99328e17 kg/m^3)186Tl (m = 185.97833 u) = ________ (CANNOT BE 2.9946e13 kg/m^3)231Pa (m = 231.035884 u)= _____ (CANNOT BE 3.624e-13 kg/m^3)238U is long-lived but ultimately unstable; it will eventually spontaneously break into two fragments, a 4He nucleus and a 234Th nucleus, in a process called alpha decay, which we’ll learn about in the next section. A great dealof energy is released in the process. What must be true about the masses of the nuclei involved?A. mU > mTh + mHeB. mU = mTh + mHeC. mU < mTh + mHe