After a certain muclear reaction. radivactive sodium is found with half life of 14.8 hore compute the disintegrations constant 2.
Q: The radionuclide 64Cu has a half-life of 12.7 h. If a sample contains 5.5 g of initially pure 64Cu…
A: Half-life of 64Cu, T12=12.7 h The initial mass, m0=5.50 g The decay time interval, t1=14 ht2=16 h…
Q: 90 4. A certain container has 0.56 grams of Sr. calculate the 90 Sr is this material in unite of…
A: this is the question about disintegration of active material.
Q: The Strontium-90 isotope that we used in this lab has a half-life of 28.1 years. In our calculations…
A: The decay constant of the strontium-90 isotope is
Q: One of the hazards of nuclear explosions is the generation of 90Sr and its subsequent incorporation…
A: The present amount of 90Sr can be represented by radioactive decay law as, Here, N0, t1/2, t, and λ…
Q: The decay constant of 235U is 9.8×10^−10 y^−1 . How many 235U atoms will remain in a 1.0 µg sample…
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Q: Ohrs later. W
A: Given: Number of counts in initial reading are 3200 Final counts are 100 counts Time is 30 hours
Q: How much energy (in kcal again) is released in the fission (splitting up) of one mole of nuclei of…
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Q: From the known atomic masses (nndc website), compute the Q-value of the decay 230Th → 226Ra + ?…
A: T90230h → R88226a + α The mass of the parent nuclei Thorium is mTh = 230.0331338 u The mass of…
Q: An ancient artifact is found to contain 250 g of carbon and has an activity of 475 decays/min.…
A: Answer :- Given :- = decay constant = 16 N = amount of substance = 250 g
Q: In general only the heavier nuclei tend to show alpha decay. For large A it is found that B/A =…
A: We are given the equation for binding energy per nucleon. We first find the binding energy as…
Q: 6 Figure 42-16 gives the activities of three radioactive samples ver- sus time. Rank the samples…
A: It is the time taken for number of nuclei to reduce by half its value. Half life of A and B is the…
Q: Mantles for gas lanterns contain thorium, because it forms an oxide that can survive being heated to…
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Q: An old campfire is uncovered during an archaeological dig. Its charcoal is found to contain less…
A: The given data we have: Sample left: 1/200 of the normal amount Half life of the sample: 5730 years.…
Q: The half-life of 222Rn is 3.82 days. (a) Find the number of 222Rn nuclei necessary to produce a…
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Q: 5) Using the semiempirical mass formula to compute the total binding energy for 5TFe.
A: The Weizsaecker formula or semi-empirical formula is a refined form of the liquid-drop model of…
Q: As reault of the. decay of on e inoctive Ko meson,two TT meson portices moving in opposite…
A: Here a neutral K meson which is inactive (means it is at rest) will decay into neutral Pions. The…
Q: The half life of 238 U against a-decay is 92 238 U having 92 1.5 x 10 s. What is the activity of a…
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Q: Radioactive Decay Let Q represent a mass (ingrams) of radioactive plutonium (239Pu), whose…
A: Given The quantity of plutonium present after t years is given as Q = 1612t24100, where Q represent…
Q: Calculate the binding energy per nucleon for Mo (Mnuc = 97.905409u). Estimate the nuclear binding…
A: Binding energy as the name suggests is the amount of energy required to keep all the nucleons inside…
Q: Consider the fusion reaction 1H + 11B ----> 34 He Estimate the top of the Colomb barrier .…
A: RH = 1.2(1)1/3 = 1.2 fm RB = 1.2(11)1/3 = 1.2 × 2.22 = 2.67 fm
Q: The β-particles emitted in the decay of 3H (tritium) interact with matter to create light in a…
A: Relation between half -life and activity can be express as - NNo=(12)tt12 .....(1) Given and known…
Q: What fraction of the upper laser decay time, Y21 would the pumping rate, Гоз ,need to be greater…
A: The pumping rate is directly proportional to the coefficient of stimulated emission B21 R α B21R=B21…
Q: A particle of ionizing radiation creates 4000 ion pairs in thegas inside a Geiger tube as it passes…
A: Minimum energy deposited is , E = (number of ion pairs created)*(energy required to create each ion…
Q: 198Au has a decay constant of 2.97 x 10-6 s-1. Activity of 1 g of the sample will be 9.03×1015 Bq.…
A: Unstable nuclei become stable by radiating energy. This process is called radioactivity. The rate at…
Q: Protactinium has a half life of 3.28 x 104 years. Estimate the decay constant.
A: Most of the heavy nuclei will undergo decay to become stable by reducing the number of neutrons or…
Q: Two radioactive elements A & B have initially activity 10 curie & 20 curie respectively. If A has…
A: Two radioactive elements A & B have initially activity 10 curie & 20 curie respectively. If…
Q: Radon, 222Rn , has a decay constant of λ = 2.1 x 10-6 s-1. What is its half-life?
A: Given, Decay constant (λ) =2.1×10-6 s-1
Q: OI 84 PO (polonium y to provide a source of a-particles of 5 millicuri if half life of polonium is…
A: Half-life is the time required for a quantity to reduce to half of its initial value. Here, we…
Q: Recently unearthed discoveries in North and South American archaeological sites show that charcoal…
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Q: A sample of radioactive material is studied in a lab and is found to have a decay constant of 100 ×…
A: When an atomic nucleus becomes unstable they become stable by radiating energy this process is known…
Q: A nuclear physicist finds 1.0 μg of 236U in a piece ofuranium ore and assumes it is primordial since…
A: Given:- A nuclear physicist finds 1.0 μg of 236U in a piece ofuranium ore and assumes it is…
Q: Unreasonable ResultsThe relatively scarce naturally occurring calcium isotope 48Ca has a half-life…
A: One half-life is said to have been passed when the radioactive isotope decays to 50% of its initial…
Q: Mantles for gas lanterns contain thorium, because it forms an oxide that can survive being heated to…
A: Hlf-life time of radioactive element is Mass of element is Note:Molar mass of is Avogadro's number…
Q: Consider the following reaction; X +a Y+b The target nucleus X is at rest. My ma Mx 02 Show that;…
A: The reaction is given as, X+a → Y+b The mass of particle-X is given as, MX The mass of particle-a is…
Q: find the activity of a certain material after 4.9weeks if it has a half life of approzimatately…
A: Given, Half-life, t1/2=259hrs Time, t=4.9weekt=4.9×7×24hrst=823.2hrs Activity, N0=4μCi The decay…
Q: onsider the decay scheme RaE →→ RaF ✨ Ra- ample of RaE weighs 5 × 10-¹0 g at time t = 0. alculate…
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Q: Radon decays through a chain of four very short-lived radionuclides (half- lives of 20 minutes and…
A: Let us analyse the question in step 2.
Q: Give the relationship between the decay constant and the half-life?
A: half life of radio active decay is the time taken to disintegrate the nuclei in to half of actual…
Q: equilibrium with all its progeny. Assuming rlI2is 1602y (d) How many atoms of Ra does it contain,…
A: (d) The atoms of Ra does it contain The half life is 1602 y. λ=0.6931602×365×24×3600λ=1.371×10-11…
Q: The decay chatin iss 211 211 po → 307p 207p6 -> what tyfe of decau does each dorw Cotebond to ?-The…
A: We have a decay of Bi to Po which further decays to Pb. The mean lifetime of first reaction t1=2.14=…
Q: Radioactive radon occurs naturally as a product of uranium decay. The half life is 3 days. Suppose a…
A: Concept: To determine the number of atoms remaining after 30 days we will use the Half-life Formula…
Q: Use the uncertainty principle ∆p ∆x > h/2 to calculate the minimum kinetic energy of a nucleon…
A: Given: For H2, mass number is A=2. We know Uncertainty principle ∆P.∆x>h4π..............(1)…
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