1 The activity of a radioactive element reduces to th 16 of its original value in 30 years. Find the half life and the decay constant of the element.
Q: 5 Half Life The half life of a substance is the time required for half the nuclei to undergo…
A: Given: The half-life of Tritium: T1/2 = 12.33 years. To find the percentage of tritium nuclei in…
Q: A radioactive material initially is observed to have an activity of 1000 decays per second. If 9.0…
A: Given : A0 = 1000 decays/sec A = 100 decays/sec t = 9 hours
Q: The half-life of a particular element is 330 days. What is its decay constant?
A: The relationship between Half life t1/2 and decay constant λ is t1/2=ln2λ=0.693λ where ln2 is…
Q: (a) Define the term decay constant of a radioactive substance. 92 (b) The half-life of 238U…
A: We are aware that U92238 a degradation has a half life of 4.5×109 years.We must determine the…
Q: 1. Calculate the binding energy (in MeV) per nucleon for an a-particle (He nucleus), given that the…
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Q: After 2.14 days, the activity of a sample of an unknown type radioactive material has decreased to…
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Q: Nt/No vs. t -0.0981'x + 0,847 1.00 0.75 0.50 0.25 0.00 2 ONIN
A: The half-life of a radioactive element is defined as the time at which the initial number of nuclei…
Q: Find the number of atoms in the sample after 10 days.
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Q: A freshly prepared sample of a certain radioactive isotope has an activity of 12 mCi, Alter 9.6…
A: Given data, Activity of the fresh sample = 12 mCi Activity of the sample after 9.6 minutes = 6 mCi
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 sample initially undergoes 12.0×10^4 decays/s. Twenty-four hours later, its activity is…
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Q: v) Check Question 5: Radioactivity (See textbook Chapter 6 - Exercise 4) Natural uranium is a…
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Q: An element, X has an atomic number 60 and a atomic mass of 166.581 u. This element is unstable and…
A: Concept: To determine the Initial activity of the sample we will use the Formula R∘=λ×N∘here,λ=…
Q: Question 3 A laboratory investigation shows that a sample of uranium ore contains 5.37 mg of U and…
A: We have to find the age of the ore
Q: A radioactive sample has a decay constant of 2.97 x 10 s¹¹. Estimate the half-life.
A: Unstable nuclei decay into a stable state. This process is called radioactivity. The rate at which…
Q: The half-life of a particular element is 330 days. What is its decay constant?
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Q: 5. (P19) A nucleus of element 114 is produced by fusing calcium - 48 with plutonium-244. Write the…
A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: 1. The decay of radioactive substance is given by -t T N = Nᵒe (1), where N is the number of atoms…
A: You are using incorrect symbol for Tau (decay constant).
Q: Determine the half-life (in s) of a radioactive sample that contains 1.10 x 105 atoms of the…
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Q: The equation for the radioactive decay of a nucleus is dN/dT=−??. Given decay constant is λ = 2.2 x…
A: We need to provide the equation for radioactive decay and also the half life of the given nucleus.
Q: A freshly prepared sample of a certain radioactive isotope has an activity of 3.7 × 1011 decays/s.…
A: Relation between activity of the radioactive isotope and half life…
Q: The nuclide 10,4 Be undergoes spontaneous radioactive decay to 10,5 B with emission of a beta…
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Q: alf-life of this sample?
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Q: Gallium-67, used in the medical diagnostics of certain types of tumors, has a nuclear half-life of…
A: Given: Nuclear radioactive half life = tr = 78.25 hours Biological half life = tb = 11.6 days…
Q: A sample of carbon of mass 6.74 g taken from an animal jawbone has an activity of 4.00 decays/min.…
A: Given that the 6.74 g of carbon taken from the jawbone. The no. of moles in 6.74 g of carbon be…
Q: Determine the half-life (in s) of a radioactive sample that has a decay rate of 3.30 ✕ 1011 Bq when…
A: Given. N = 1.7*10¹⁵ dN/dt = 3.3*10¹¹ Formula used N(t) = N⁰*0.5t/T Where T is half life
Q: 4. An ancient club is found that contains 150 g of pure carbon and has an activity of 4 decays per…
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Q: Problem Calculate the response of the system 3x(t) + 12x(t) = 38(t) − 8(t − 1) subject to initial…
A: To findCalculate the response of the systemGivenThe equation is given asInitial conditions are given…
Q: An element, X has an atomic number 41 and a atomic mass of 132.790 u. This element is unstable and…
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Q: The number of radioactive nuclei present at the start of an experiment is 5.38 x 1015. The number…
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Q: A 5 g sample of a radioactive element takes 102 days to reduce into 3 g. Calculate the half-life and…
A: Radioactive decay takes place when an unstable nucleus becomes stable. The instability arises due to…
Q: A radioactive sample has a decay of 0.2193/min. a) What is the half-life? b) If at the start of an…
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Q: After 1.86 days, the activity of a sample of an unknown type of radioactive material has decreased…
A: The objective of this question is to find the half-life of a radioactive material given the time it…
Q: unlabeled container of radioactive material has an activity of 78 decays/min. Four days later the…
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Q: After 85 years, 80 % of a radioactive material decays. What is the half-life?
A: Given, Time,t=85yrs=85×3.154×107sPercentage of the material decay= 80% We have the expression for…
Q: The radium isotope 226 Ra has a hall-life of 1600 years. A sample begins with 3.50x1010 226 Ra atoms…
A: The half-life of 226Ra is T1/2 = 1600yr and the Initial amount is N0 = 3.50 x 1010
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