01: Two radioactive samples contain equal number of particles initially. Sample A disintegrate at the rate of 10 particles per/sec while B disintegrates at the rate of 1000 particles per second. Which will be finished earlier.

Q: Indium-116 is radioactive and has a half-life of 14.10 seconds. How much of a 9.10 mg sample would…

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Q: Questlen ? Technetium-99, a radioactive tracer used in medicine has a half life of 14.6 hours. How…

A: Given, Half-life ( t1/2) = 14.6 hours

Q: a. Sr-85 decays by electron capture. What are the atomic symbol and mass number of the product?…

A: Identify the product of the given conditions--

Q: Strontium-90 is radioactive and has a half life of 28.8 years. How much of a 5.20 mg sample would be…

A: Given: Half life=28.8 years Time=127 years Initial concentration=5.20mg Since it is radioactive…

Q: Radium-223 dichloride (also called Xofigo) with a half-life of 11.4 days has been approved by the…

A: Half life for a radioactive element is defined as the time taken some initial amount (concentration)…

Q: Background information about the lab/lab topic. Write a paragraph about radioactive decay and…

A: To describe about radioactive decay and half life of radioactive decay also

Q: The hall ife for the radioactive decay of carbon-14 to nitrogen-14 is 5.73- 10' years. Suppose…

A: Given-> Half life = 5.73 × 103year Initial amount = 1.000 mmole Amount of N-14 at final = 0.835…

Q: Strontium-90 is a radioactive material that decays according to the function A1t2 = A0e-0.0244t ,…

A: Since you have posted a question with multiple subparts, we will solve the first three subparts for…

Q: Which of the following forces is the reason why a nucleus ends up becoming radioactive as it gets…

A: There are two types of nuclear reaction occur in chemistry. Nuclear fusion and nuclear fission.

Q: brain scan uses the

A: The recommended dosage is only 40mCi. Since we know that 260 mCi corresponds to only 40 mL

Q: A sample of iron weighing 15.0 g was heated with potassium chlorate (KCIO3) in an evacuated…

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Q: . Barium – 122 has a half-life of 2 minutes. Suppose you obtain a sample weighing 10.0 g and it…

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Q: The radioactive isotope I-131 is used in the treatment of hyperthyroidism. When administered to a…

A: a) time = 72 hoursTo calculate : Percentage of the original amount shipped actually arrives at the…

Q: Explain why “weapons-grade” Uranium would not likely contain very much Uranium-23

A: Interpretation -  To explain why “weapons-grade” Uranium would not likely contain very much…

Q: A sample of a radioactive metal starts with a mass of 400 grams. When a chemist examines it later,…

A: 25 g of metal remains after 4 half-lives.

Q: what fraction of the initial 14C atoms is still there?

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Q: Uranium-235 isotopes absorb neutrons, causing the U-235 to become unstable and split into two…

A: When a nuclei uranium-235 is hit with a slow-moving neutron, the nuclei absorbs it and temporarily…

Q: Assume that the rate of decay of a radioactive substance is proportional to the amount of the…

A: Nuclear reactions are a type of chemical processes that lead to the formation of some new nuclei…

Q: Cesium-137 is radioactive and has a half life of 30. years. How much of a 6.90 mg sample would be…

A: Given: Cesium-137 has a half life=30 years Initial amount = 6.90 mg Time= 142 years To calculate:…

Q: So I just need help with identifying with picture example is alpha, beta, or gamma with a…

A: Note - Since the lower image is not clear, we will solve the upper image question for you. Please…

Q: Iodine-125 is radioactive and has a half life of 60.25 days. How much of a 7.20 mg sample would be…

A: The solution is as follows :

Q: Isotopes that are used to determine groundwater recharge seasonality are referred to by I) stable or…

A: Answer - The correct option is (i) Stable  Explanation - The stable isotopes of oxygen and hydrogen…

Q: Radioactive Carbon-14 The percentage Pof radioactive carbon- t/5700 14 remaining in a fossil after t…

A: #Radioactive carbon-14: Given the percentage of radioactive carbon-14 remaining after t years, P =…

Q: Strontium-90 is radioactive and has a half life of 28.8 years. How much of a 9.70 mg sample would be…

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Q: Tin-129 is radioactive and has a half life of 2.23 minutes. How much of a 3.00 mg sample would be…

A: We have to predict the amount of sample left

Q: Gold-198 has a halflife of 2.7 days. How much of a 872.5 mg gold-198 sample will remain after 13.5…

A: Given:  Half-life (t1/2) of gold-198 = 2.7 days The initial amount of gold-198 = 872.5 mg

Q: How many mLmL will be injected into a patient?

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Q: Nuclear fusion power stations will produce radioactive waste. This waste will have a much shorter…

A: Nuclear fission is the breaking down of heavy, unstable nuclei into two or more lighter nuclei while…

Q: A chemical substance has a half-life of 5 hours.If you start with a 133 gram sample when will there…

A: Introduction: We have to calculate the time when substance remaining is 2g.

Q: Copper(II) acetate containing Cu is used to study brain tumors. This isotope has a half-life of 12.7…

A: Radioactive decay: Radioactive decay or nuclear disintegration is a process in which an atom with…

Q: Hydrogen-3 is radioactive and has a half life of 12.3 years. What percentage of a sample would be…

A: Half-Life =12.3 years Time =13.0 years

Q: 5. The amount of a radioactive substance A is an exponential function of time t. Every 20 minutes,…

A: a). The equation must be of the form: A=A0e-kt (because of exponential dependence) where, A is the…

Q: half-life of a radioactive substance is 10 days and there are 10 grams initially. What is the…

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Q: Carbon-14 (14C) is a radioactive isotope of carbon that has a half-life of approximately 5730 years,…

A: Radioactivity is a phenomenon that occurs in isotopes, where, the unstable nucleus of the isotopes…

Q: Bromine-88 is radioactive and has a half ife of 16.3 seconds. What percentage of a sample would be…

A:

Q: 3. Plutonium 238 is a radioactive element that decays at a rate of 0.8% per year. (a) What…

A: Given, rate of decay of Plutonium -238 is 0.8 % per year.

Q: Radioactive isotope Lead-200 has a half-life of 21 days. Suppose a samplé of (Round r to 3 decimal…

A: Given: The half life of the reaction, (t1/2)=21 days. The initial mass of the Pb-200, (m0)=360 g.…

Q: 12) How much material is left when you start with 15-g and you have gone through 1.63 half-lives?

A: Radioactive decay happens when a nucleus is subjected to radiation and breaks down into a number of…

Q: A sample of a radioactive substance has an initial mass of 563.6 mg. This substance follows a…

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Q: (A) if both sentences are true, (B) if both sentences are false, (C) if the first sentence is true…

A: 1. (B)  both sentences are false reason - A radioactive atom will attempt to reach stability by…

Q: Phosphorus- 32 is radioactive and has a half life of 14.3 days. How much of a 2.70mg sample…

A: The rate constant for the reaction, k, is calculated as shown below where t1/2 is the half-life for…

Q: half-life

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Q: Redium (chemical symbol Rd) and blueium (chemical symbol BI) are newly discovered elements with…

A: Beta Decay is a type of radioactive decay in which a neutron is transformed into a proton inside the…

Q: Radioactive Decay 100 100 60 50 40 25 12.5 20 8.25 3.125 10 15 20 25 Time (days) O A. Half of the…

A: From the graph it is clear that: i) the initial mass of sample is 100g. ii) the sample becomes half…

Q: proton ratio describes a radioactive element's half-life. up this concept because they wanted to…

A: We will choose Correct option

Q: ​Strontium-90 is a radioactive material that decays according to the function A(t)=A0e−0.0244t,…

A:

Q: Carbon Dating The age of an ancient artifact can be deter- mined by the amount of radioactive…

A: Radioactive decay follows first order kinetics. The integrated rate equation for a first order…

Q: Aluminum decayed into silicon. It must have emitted a(n) __________ .

A: Aluminium has 22 isotopes and only one of them is stable. Since the isotope of Aluminium has not…

Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.