Ea (MeV) Nuclide 216 Ra 0.18 us 9.5 0.7s 194 Po 7.0 240 Cm 27 d 6.4 226 Ra 1600 y 4.91 232 Th 1.4x1010 У 4.1

Q: A freshly prepared sample of a certain radioactive isotope has an activity of 10.0 mCi. After 4.00…

A: Formula to calculate the decay constant is,

Q: You have a 5.2 mol pure sample of an unknown material. After 1.2 h, you discover that 56% has…

A: Given that                    The initial number of the moles of the sample is No = 5.2mol Since…

Q: 232 Th 228. Th + xa + yB 06 90 A Thorium (Th) decays by emitting x alpha particles and y beta…

A: Given: A decay reaction of Thorium. In that x alpha and y beta particles are emitted.

Q: Calculate the binding energy per nucleon (four significant figures) for the reaction below, 223, Ra…

A: The atomic mass of Ra88223 = 223.01850 u The atomic mass of P82209b = 208.98107 u The atomic mass of…

Q: A freshly prepared sample of a certain radioactive isotope has an activity of 10.0 mCi. After 4.00…

A:

Q: β− decay of 3H (tritium), a manufactured isotope ofhydrogen used in some digital watch displays,…

A:

Q: What size disinfection chamber will be needed to achieve a 3 log disinfection of viruses, using…

A: 3 log reduction means 99.9% reduction of bacteria. Let the initial bacteria present be x. After 3…

Q: How much energy (in MeV) is released in the following fission reaction? 235 n + 920 98 135. 40 2r +…

A: Answer             191.7903 Mev

Q: What is the nuclear equation for Kr (beta decay) 36 www a. Kr Br + je 85 85 1) 85 b. Kr → Rb + -je…

A:

Q: 3. Decay of a radioactive material takes place according to the data given in Table 2. Find the…

A:

Q: Deuterium, H, undergoes fusion according to the following reaction 担+担→江+X The following data are…

A: Given Data: B.E./nucleon, B.E./nucleon,   Reaction:

Q: When Po decays, the product is Pb. The half-life of this decay process is 1.78 ms. If the initial…

A: Determine the decay constant as follows. λ=0.693t12=0.6931.78 ms=0.6931.78×10-3 s=389.3258 s-1

Q: The theory of nuclear astrophysics is that all the heavy elements like uranium are formed in the…

A: According to the radioactive decay law,

Q: A 216 Po nucleus undergoes alpha decay according to the reaction Po → Pb + He. Determine the…

A:

Q: •10 Go Calculate the energy released in the fission reaction 235U + n- 14CS + 9³Rb + 2n. Here are…

A:

Q: Problem 3 – Consider a 210Po (209.982848 u) nucleus that undergoes a decay resulting in 20 Pb…

A:

Q: Determine the energy yield of the following fission reaction. Use the given masses below. U + dn →…

A: Given thatU92235+n01→Z4094r+T52139e+3(n01)The mass defect is the difference between the mass of…

Q: he half-life of 222Rn is 3.82 days. (a) Convert the half-life to seconds.      Answer: _______…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: The isotope 254Cf decays almost exclusively by spontaneous fission, with a half-life of 60.5 days.…

A: Number of atom in 1 mol = 6.023×1023  Mass = 1 ug = 10-9 kg  Time t = 60 sec

Q: Cancer cells are more vulnerable to x and gamma radiation than are healthy cells. In the past, the…

A: The equation for the number of 60Co nuclie present in Ci source can be obtained as

Q: In a living organism, a fixed fraction 1.30 × 10-12 of 12C is the radioactive isotope 14C, which has…

A: mass of sample = 3.3 g mass of C-14 isotope = 1.3 * 10-12 * 3.3 g  = 4.29 * 10-12 g Number of atoms…

Q: The cesium isotope 137Cs is present in the fallout from aboveground detonations of nuclear bombs.…

A: A nucleus that decays spontaneously by emitting an electron or a positron is said to undergo beta…

Q: Derive an approximate relationship between the energy of α decay and half-life using the following…

A: Given,

Q: Bq contains 3 x 10 14 nuclei thathave not decayed. What is its A radioactive sample with an activity…

A:

Q: How many calendar years (= exactly 365 days) can a 5.75 W LED lamp light up with 0.853 kg deuterium…

A: Given The amount of deuterium m = 0.853 kg Energy from one deuterium E = 0.823 MeV Power of the LED…

Q: Identify the unknown isotope X in the following decays.a. X → 224Ra + α             b. X → 207Pb +…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: The ceramic glaze on a red-orange Fiestaware plate is U2O3 and contains 50.3 grams of 238U, but very…

A:

Q: Q41. A radioactive source has a half-life of 20 days. Calculate the activity of the source after 70…

A: Radioactive elements emit radiation of different types. With time the amount of the radioactive…

Q: Complete the radioactive decay equation: 31,4Si -> 3115P + ? a. 4He

A: For the reactant 31 14Si of the decay reaction, the atomic number is 14 and the mass number is 31.…

Q: e half-life of 233 U is 1.6 x 105 years. Calculate: i) The number of atoms in 1 gram of 233 U 92 ii)…

A:

Q: A radioactive material has a decay constant of λ = 0.0586 yr-1. If it starts out with N0 = 9.03 ×…

A: Given: Decay constant : λ=0.0586 yr-1 N0=9.03×1018 t = 407 years To find N left after given t years.

Q: A sample of U (T1=1.59 × 10° yr) contains Part A 6.10 × 1018 nuclei. What is the decay constant?…

A: Given data: The half-life is T1/2=1.59×105 yr. The number of nuclei is n=6.10×1018 nuclei.

Q: How many years can a 7.93 W LED lamp light up with 0.735 kg deuterium if 23.41% of the released…

A: Energy released in fusion reaction of two deuterium nuclei = U= 3.27×106 eV Energy converted into…

Q: A radium source contains 1.00 mg of 226Ra, which decays with a half-life of 1600 y to produce 222Rn,…

A:

Q: β+decay of 52Fe.

A: In +tive beta decay or β+ decay, there is emission of positron and neutrino from particular…

Q: Find the energy (in MeV) released in the fission reaction shown below. n + 23592U → 9840Zr + 13552Te…

A:

Q: The nuclide 244Pu (Z = 94) is an alpha-emitter. Into which of the following nuclides does it decay:…

A:

Q: 5. Calculate the energy released in the following rare spontaneous fission reaction: 238 U → 95 Sr +…

A: according to Einstein's mass energy equivalence E = mc2  1 amu mass defect = 931.5 Mev

Q: Calculate the energy released in the following nuclear fission reaction:…

A:

Q: A source contains two phosphorus radionuclides, 32P (T1/2 = 14.3 d) and 33P (T1/2 = 25.3 d).…

A:

Q: A freshly prepared sample of certain radioactive isotope has an activity of 12.0 mCi. After 4.00h,…

A:

Q: 32 Ne decays by B decay. Which of these is the correct reaction? Select one: O a. Ne B+%F O b. 16NE…

A: A nucleus that decays spontaneously by emitting an electron or a positron is said to undergo beta…

Q: How many years can a 7.93 W LED lamp light up with 0.735 kg deuterium if 23.41% of the released…

A: Given : Energy of LED = 7.93 W Amount of deuterium, m = 0.735 kg = 735 g

Nuclear Reactions

Nuclear reactions are processes in which the fundamental characteristics of a nucleus changes. They change into a completely different nucleus. These processes occur naturally in an unstable nucleus. Bombarding an energetic particle can induce nuclear reactions.  In this article, both the naturally occurring nuclear reactions are termed as radioactive decay and the induced nuclear reactions are further categorized as nuclear fission and nuclear fusion.