6C has a half life of 5,730 years. How many 6C atoms would you need in order to measure an average of 16 decays per second? Round your answer to 2 decimal places.

Q: Cobalt-60 is radioactive and has a half life of 5.26 years. Calculate the activity of a 9.7 mg…

A: Given mass of sample = 9.7mg = 0.0097g  Molar mass of Cobalt-60 = 60g/mol  Half life of reaction =…

Q: 7) The half life of silicon is 710 years. 40 grams are present now, how much will be present in 200…

A:

Q: Be sure to answer all parts. The radioactive decay of thallium-206 to lead-206 has a half-life of…

A: Here we have to calculate number of atom left after 42 minutes-

Q: If you have 1 gm of pure potassium 40 (40K) that is experimentally determined to emit about 105 beta…

A: Activity of 40 K = 105 beta rays. The decay constant λ can be calculated as follows:

Q: . A radioactive isotope has a half-life of 10 years. What fraction of the original mass will remain…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: 3. Cobalt-60 has a half-life of 5.26 years. If 1.00 g of 6°CO were allowed to decay, how many grams…

A: 3) Given that: Half life of cobalt = 5.26 years Mass of cobalt = 1.0 g

Q: 25. Iodine-131 is a radioactive substance that can be used to treat certain thyroid conditions. It…

A: Q25) Given that: Half life = 8 days Mass of Iodine = 40 mg Remain after 4 half lives = ?

Q: [Refere A 1.14 g sample of a radioactive isotope decays to 0.87 g in 36.3 hr. What is the half-life…

A: Given  Initial Amount [ A ]0   = 1.15 gram  Remaining Amount [ A ]    = 0.87 gram  Time ( t ) = 36.3…

Q: The naturally occurring isotope rubidium-87 decays by beta emission to strontium-87. This decay is…

A: Amount of rubidium = 123.0  μg  Amount of strontium = 5.5 μg Half life time of rubidium = 4.8 × 1010…

Q: Radioactive Decay The half-life of palladium-100 is 4 days. After 20 days a sample has been reduced…

A: Given Data:  Half life of Pd-100 = 4 days  Reduced mass = 0.375g The formula of half life is given…

Q: A theoretical isotope X-100 has an initial mass of 500g. This isotope has a half-life of 8 hours.…

A: GivInitial mass=500g Half life=8 hours

Q: Technetium-99 (half-life = 6.01 h) is used in medical imaging. How many half-lives would go by in…

A: a) Given t1/2 = 6.01 h 100% →6.01 h 50 % →6.01 h 25 % →6.01 h12.5 % →6.01 h 6.25 % →6.01 h 3.125 %…

Q: Complete the table for the radioactive isotope. Isotope 239Pu, Half Life (In years) 24100, Initial…

A: Radioactive decay reactions are first order reactions. Nt = Noe-λt        (equation1) No - Initial…

Q: Rubidium-87 decays by B production to strontium-87 with a half life of 4.7 × 1010 years. What is the…

A: Radioactive decay reactions follow first order kinetics.

Q: Technetium-99 (half-life = 6.0 h) is used in medical imaging. How many half-lives would go by in 18…

A: technetium - 99 have half life = 6 hours

Q: 1) According to your data, what are the approximate half-lives of the elements A, B, C, and D? A: B:…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: What is the age of a fossil that has a carbon-14 decay rate of 6.5 disintegrations per minute per g…

A: Formula used y=a e-nt where y is the final  amount of death = 6.5dis/min           x is the initial…

Q: If you start with 1 million atoms of a particular radioactive isotope, how many half-lives are…

A:

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

A:

Q: Suppose the amount of a certain radioactive substance in a sample decays from 9.40mg to 5.40mg over…

A: Radioactive decay is the first order decay. the formula for calculation of radioactive decay as…

Q: 1.Element F has a quarter life of 10 hrs. If there are 925 milligrams remaining of element F after…

A: SOLUTION: A = AoE-KT  (First order reaction) Quarter life = 10Hours At quarter life A=3Ao/4 3Ao/4 =…

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 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: The carbon-11 isotope has a half-life of 20.3 minutes. How long (in hours) will it take for 99.9999%…

A: Here we have to determine time required for 99.9999% of a carbon-11 sample to disappear.Given half…

Q: A rock was dated using Carbon-14 (half life = 5730 years). If the percentage of the parent atoms…

A: Given data contains, Half-life of C-14 is 5730 years. Percentage of parent atoms is 12.5%. N0 is…

Q: Part 1.1. If a radioactive element has a half-life of 2.5 million years, the amount of parent…

A:

Q: 2. Strontium-90 has a half-life of 28 years. If a sample was tested in 1980 and found to be emitting…

A:

Q: Radiation seed therapy is a common method for treating some prostate cancers and brain tumors.…

A: Radioactive degradation follow first order kinetics.

Q: How old is a skeleton that has lost 40% of its carbon-l4? Use 5,73A years as the half life of…

A: NOTE : There is a typing error in the half life of C-14 It will be 5730 year

Q: Q2: a- Calculate the radius and volume also the density of Gold Nuclei (Au). b- The radioactive…

A:

Q: Carbon-14 is a radioactive element with a half-life of about 5,730 years. Carbon-14 is said to decay…

A:

Q: The initial amount of the radioactive material V in a rock is determined t be 6.78 mg. Only 1.46 mg…

A: When we study the kinetics of any chemical reaction that means how slow or fast reaction is, then…

Q: Substance Q initially weights 120% of its remaining mass after its decay in 60 minutes. What is its…

A: Given  substance Q initial weight =120% of its remaining mass after its decay for 60 mins t=60…

Q: . A radioactive parent isotope with 600 atoms. After the decay, 450 daughter atoms were produced.…

A:

Q: Can someone help me solve these problems?

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: 0 Question 9 180pb has a half-life of 25.5 s. If a sample of this isotope is initially 750.0 g, what…

A:

Q: Iodine-131 is a radioactive isotope. After 6.00 days, 59.6% of a sample of 13I remains. What is the…

A:

Q: The half-life of 98AU is 2.7 days. If you begin with 5.6 mg of this gold isotope, what mass remains…

A: Half-life is the time required for the reaction to be half completed. It is denoted by t1/2 . For a…

Q: lement X decays radioactively with a half life of 8 minutes. If there are 530 grams of lement X, how…

A: Given: The half life of the sample, (t1/2)=8 minutes. The initial amount of sample, (N0)=530 grams.…

Q: Ruthenium-106 (^ 106 Ru) is used to treat melanoma in the eye. This isotope decays by Beta ^- with a…

A: Ru has an atomic number 44 and has seven stable isotopes.27 radioactive isotopes are present.106Ru…

Q: The half-life of 14C is 5730 years, and the current decay rate in living organisms is 14.3…

A: Given: The activity of sample = 4.75 d.p.m/g C The activity of fresh wood = 14.3 d.p.m/g C And…

Q: It takes 6400 years for one gram of a radioactive element to decay away to only 1/16 of a gram. The…

A: Given time = 6400 years M/M० = 1/16

Q: Sr-90 has a half-life of 28.8 years. Beginning with 15.0 of Sr-90, how much will remain after 145…

A: Determination of rate constant, K:

Q: Carbon-14 (14C) is a naturally occurring radionuclide of carbon with about 5,730 years half-life. If…

A:

Q: The ¹H nucleus is composed of a single proton and therefore has a mass loss of 0 g/mol. Select the…

A:

Q: Polonium-210 is a radioactive substance with a half-life of 138 days. If a nuclear facility is…

A:

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.