It radioactive isotope of an unknown element is an extremely hazardous species if a 56 g sample of the element diminishes to 24 g and 76.2 years calculate the half-life of this on an element express or answering years has three significant digits

Q: If a sample of 131La goes from 450 picocuries to 100 picocuries in 185 minutes, what is its…

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Q: Part C Americium-241 is used in some smoke detectors. It is an alpha emitter with a half-life of 432…

A: Radioactive decay follows first order kinetics. The rate law expression for first order reaction is:…

Q: 29 17. What information cannot be determined from the symbol notation 14Si? O the mass number O the…

A: To solve this problem we will use the concept of symbols notation

Q: Technetium-99 is a commonly used radioisotope decays via Beta-emission. a. Use a graphical method on…

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Q: Radioactive radon-222, found in many homes, is a potential health hazard. The half-life of radon-222…

A:

Q: As recently as the late 1970s, some wrist watches were manufactured using tritium (3H) as a…

A: t1/2 of 3H = 4500 days 43 years ago, a watch was purchased.

Q: Cobalt- 60 is radioactive and has a half life of 5.26 years. Calculate the activity of a 2.6mg…

A: Given :Half life of Cobalt-60 = 5.26 yearsMass of Cobalt sample = 2.6 mgActivity of cobalt-60 sample…

Q: Phosphorus-32 is radioactive and has a half life of 14.3 days. How much of a 9.00 mg sample would be…

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Q: Thallium-201 is used medically to diagnose heart problems. The half-life of thallium-201 is 72.9…

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Q: 29 20. What information cannot be determined from the symbol notation 14.Si? O the element the mass…

A: Information  which can not be determined  by above symbol are as follow.

Q: Question 6: Radioactivity (See textbook Chapter 6 - Exercise 6) Cf has a half-life of 2.64 years. It…

A: 252Cf is a radioactive element. It has half life of 2.64years. The half life for decay by…

Q: 6C has a half life of 5,730 years. How many 6C atoms would you need in order to measure an average…

A: The half life is given as 5730 years Average Decay per Second = 10

Q: Iodine-131 is administered orally in the form of NaI(aq) as a treatment for thyroid cancer. The…

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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: Calculate the amount of radioactivesubstance remaining after a specifiedtime has elapsed.

A: Given information,    The amount of radioactive substance remaining after a specified time has…

Q: What is the age of a wooden tool found to have 29.0% of the original ¹4C present if the half-life of…

A: We know, The age of the sample,  Where, k = disintegration constantN0 = initial sample number N =…

Q: 2. The half-life of carbon-14 is 5,730 years. Express the amount of carbon-14 remaining as a…

A: The decay of carbon-14 follows an exponential decay model. The amount of carbon-14 remaining as a…

Q: [Review Topics] [References] Use the References to access important values if needed for this…

A: N0 = 54.7 microgram  N(t) = 6.84 microgram t = 39.9 hrs. t1/2 = ?

Q: The isotope of plutonium 238Pu is used to make thermoelectric power sources for spacecraft. Suppose…

A: Initial amount = Q0 = 3.0 kg Qt = Q0e-kt

Q: The half-life of 9USr is 29 years. What fraction of the atoms in a sample of 0Sr would remain 175…

A: here we are required to find the fraction of sample of Sr that would remain after 175 years later

Q: Suppose the amount of a certain radioactive substance in a sample decays from 6.70 mg to 700. µg…

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Q: The half life of a radioactive iodine is 8 days. How long will it take for 0.25 g of radioactive…

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Q: Iodine-131 is administered orally in the form of NaI(aq) as a treatment for thyroid cancer. The…

A:

Q: All of the following statements are true EXCEPT || A. gamma emission can accompany nuclear decay,…

A: Hi, since you have posted multiple questions we will answer the very first question for you. Kindly…

Q: lodine-131 has a half-life of 8.1 days. How much of 2 g of the isotope will remain after 56.7 days?…

A: The nuclear half-life of a radioactive isotope tells you how much time must pass in order for half…

Q: The isotope of plutonium 238Pu is used to make thermoelectric power sources for spacecraft. Suppose…

A: Initial amount = Q0 = 3.0 kg For first order reactions, general relation is: Qt = Q0e-kt…

Q: Strontium-90 is a radioactive substance that decays according to following function, where y sub-0…

A: Here we are required to find the half life of the radioactive substance Sr90

Q: What is the mass of an assembly of 1000 electrons?

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Q: Elemet x decays radioactivity with a half life of 14 minutes . if there are 920 grams of elment x ,…

A: A numerical problem based on the concept of half-life period which is to be accomplished.

Q: The half-life time of a radioactive element is 6.0 days. A sample of 50.0 g of this element is…

A:

Q: The half-life of carbon 14 is 5730 years [ Hint: Use the formula N(t)= N.2"] Answer in comple…

A: Given The half life of C-14=5730 years All the nuclear disintegration processes follow, 1st order…

Q: Phosphorus-32 has a half-life of 14.0 days. Starting with 8.00 g of 3²P, how many grams will remain…

A:

Q: The half life for the radioactive decay of rubidium-87 to strontium-87 is 4.88 x 10" years. Suppose…

A:

Q: 19. The half-life of the radio-isotope iodine - 131 is 8 days. What fraction of the original iodine…

A: Half life of the reaction is the time in which the reactant becomes half of the initial reactant. It…

Q: Solve the following problems and show complete solution. A. Half life of Sr90 is 29 years. What…

A: A.     Half life of Sr-90 ( t1/2) = 29 y           Let ' t '    =  100 y       n × t1/2   =  t…

Q: A 100.0g sample of water containing tritium, 3,1H emits 2.89*10^3 beta particles per second. Tritium…

A: To solve this problem, we need to determine the percentage of hydrogen atoms in the water sample…

Q: Strontium-90 is one of the radioisotopes released in the Chernobyl nuclear plant accident. The…

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Q: One gram of a sample of Bi decays to 0.25g after 10 days. The half life ofBi in 83 83 days is A 3 B…

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Q: You are using a Geiger counter to measure the activity of a radioactive substance over the course of…

A: Dear student ,   since you have posted multiple parts questions we are allowed to solve only first…

Q: 13. The carbon from the heartwood of a giant sequoia tree gives 11 ¹C counts per minute per gram of…

A: Given data: The count of carbon from the heartwood of the tree is: N0=11. The count of carbon from…

Q: KC IM IN R Question 4 of 11, Step 2 of 3 4/15 Correct The half-life of radium-222 is approximately…

A: Answer: substance remain after 17 second: 2.932 g

Q: What is the half-life of bismuth-210 if 17.3 days are required for the activity of a sample of…

A: Given ,

Q: lodine-131 has a half-life of 8. l days. How much of 2 g of the isotope will remain after 56.7 days?…

A: Half-life of iodine = t1/2 =  8.1 days intial amount = A0 = 2 g  final amount = A =  ? g  Time given…

Q: Half-Life 1189 years Decay Rate, k Complete the table shown to the right for the half-life of a…

A: Given, Half life = 1189 years Decay rate, k = ?

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.