35. If the half-life of a radioactive isotope is 200 years, and a specimen contained 5 grams of parent isotope and 15 grams of daughter product, then how many half-lives have elapsed.

Q: How the specific activity of an isotope in an object is used to determine the object’s age

A: How the specific activity of an isotope in an object is used to determine the object’s age.

Q: Strontium-90 Original amount: 5 g Amount left: 0.3125 g Total time: Half-life: 28.8 y Number of…

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Q: Krypton-79 has a half-life of 34.50 h. After 138.0 h, 54.25 kg of this radioistope is left. How much…

A: Given, the half-life of Krypton-79 is 34.50 hthe amount of radioisotop left after 138.0 h is 54.25…

Q: Complete the table for the radioactive isotope. Half-life Initial Amount After Isotope (years) |…

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Q: 1. Complete the equations for each of the following nuclear decay processes. 210 Po → 20 Pb + ? Th→…

A: For this type of nuclear reaction we complete the equation by determine the missing atomic number…

Q: An example of a fission product is A. cadmium B. boron C. barium D. thorium…

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Q: Complete each nuclear fission reaction.

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Q: If a rock contained 12.0 g of ⁴⁰K when the earth was formed 4.54 billion years ago and the half-life…

A: Given information is as follows; Initial mass of ⁴⁰K in the rock A0 = 12.0 g Final mass of ⁴⁰K in…

Q: A radioactive isotope has a half-life of 12.0 seconds. How much of a 100 gram sample is left after…

A: Given  Half life of radioactive isotope ( t1/2 )  = 12 second  Initial Mass of sample   ( A )0 = 100…

Q: The radioactive isotope 1 Pa decays by beta emission. If the mass of a sample of protactinium-234…

A: The question is based on the concept of nuclear chemistry. we have to calculate the half life of the…

Q: Define the term Alpha Radiation?

A: The radioactive decay of the heavy nuclei leads to the formation of various kinds of radiations and…

Q: If 10 grams of Uranium underwent three half-lives; how much uranium would be left?

A: The time in which half of the initial amount of the reactants convert into the product known as half…

Q: Define the term Nuclear Transmutations?

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Q: If the half-life of a radioactive substance is 500 million years and you have 48 atoms of it, how…

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Q: Iron-59 has a half-life of 45 days. If 168 g of a radioactive iron (59Fe) is received in the lab…

A: We know radioactive decay is first order reaction so the half-life of a first-order reaction is-…

Q: 4. The americium isotope Am is unstable and emits a 5.538 MeV alpha particle. The atomic mass of Am…

A: #4: An alpha particle, He24 has 2 protons (Z = 2) and 4 unit mass. Hence when an alpha particle,…

Q: The half-life of Polonium-218 is 3.00 minutes.  How many half-lives pass after 18.0 minutes ?  The…

A: Concept - Radioactive decays are first order reactions. So we use the formula, Nt = No(1/2)n, where…

Q: yields 39 Gamma decay: 19K →

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Q: Skittles "S" Down Skittles "S" Down Skittleso "S" Up (Parent Atoms) (Daughter Atoms) for each Trial…

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Q: The half life of radium 226 is 1602 years. If you have 500 grams of radium today how many grams…

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Q: The radioactive nuclide ??2755 has a half-life of 17.5 hours. What mass of ??2755 remains from a…

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Q: If a 50.42 mg sample of a pure radioisotope has a half-life of 38 days, what will be the mass of the…

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Q: ompare the binding energy of a neutron in 2311Na to that in 2411Na

A: 23Na    →  22Na +  1n M( 22Na) =21.994437 um(1n) = 1.008665 uM(23Na)=22.989770 uMass defect…

Q: A radioactive nuclide that has a life of 5 hours has an initial amount of 50 grams. After 15 hours,…

A: The formula for the ratio of the initial amount and amount after time t is, NN0 =12tTwhere,N0 =…

Q: An unknown radioactive substance is currently decaying. Initially, the sample contained 16.1g of the…

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Q: The half-life of copper-67 is 61 hours.  If an original sample contains 24 grams how many grams are…

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Q: Tc-99m is the most commonly used radioactive isotope in medicine. It is a gamma emitter and has a…

A: The half life of Tc-99 is six hours. There will be two half lives involved in twelve hours. The…

Q: A gas sample with a mass of 88 mg occupies 50 ml at 75 torr at 23 degrees Celsius. The gas constant…

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Q: which isotope would most likely undergo alpha decay? A) 19Ne B) 96Ru C) 106Cd D) 222Rn E) 124Xe

A: Radioactive decay is a process in which some particles emit from unstable atomic  nucleus.Emitted…

Q: Write 2-3 sentences describing what happens to a uranium nucleus during nuclear fission

A: Write 2-3 sentences describing what happens to a uranium nucleus during nuclear fission.

Q: What’s 0 -1 beta particle?

A: A beta particle is a particle with high-energy emitted by the radioactive decay of an atomic nucleus…

Q: When an atom undergoes beta decay, where does the beta particle come from?  What other particle is…

A: To describe from where beta particle come and what is the other particle