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I know the equation is A=Ae^(-rt) I tried working it out but I think I am doing it wrong. Thanks a lot An archeological artifact was subjected to radiocarbon dating. If the half-life of strontium-90 is 32 years, what fraction of the strontium-90 absorbed in 1965 remained in people's ...

How many grams will remain after (a) 12,000 years (b) 24,000 years (c) 96,000 years? Predicting Table of radioactive isotopes below Isotope type of decay Uranium-238 Alpha Nickel-63 Beta Iodine-131 Beta Radium-226 Alpha With the help of a periodic table, predict the element that forms in each case. Anna, an adolescent girl, is very much in love with her boyfriend who is three years older than she. Suppose you have 100 g of radioactive plutonium-239 with a half-life of 24,000 years. What is the half-life of the material and how much will have decayed after a week? Use the fact that this radioactive carbon decays continuously at a rate... First order Suppose that drilling into what was once a lake bottom produces a piece of wood which, according to its mass, would have contained 5 nanograms (5 billionths of a gram) of carbon-14 when the wood was alive. If radioactive decay caused the number of atoms to drop by half within 4.0 s, how many atoms were left after 12 s? You work for a nuclear company and you want to separate out radioactive carbon from the soil sample. You have a sample of a certain radioactive substance.

Transmutation is the change in a nucleus due to the change in the number of protons.-F? (Round your answer to one decimal place.) Scientists at Oak Ridge National Laboratory confirmed the existence of element 104 by creating 3000 atoms of it. She has mentioned THINKING about us getting be married. Show types: Reality TV dating shows that feature Bachelors and Bachelorettes vie for each others’ affections, “Who Wants to Marry a Millionaire” and In the summer of 2007 and the spring of 2009, 20-30 year-old men and 40-year-old women were vying for each others' ...What is the approximate difference in the half-lives of the isotopes? Estimate the age of the bone to the nearest hundred years, given that Carbon-1 is radioactive with half-life of 5730 years and the rate of decay is given by the following differential ... using periodic table, how can i predict the molecular formula of elemental astatine. a) Find the equation for the amount of Thorium left after t years. During the few days it is around, it behaves chemically like any other copper isotope, but eventually it all turns into something else. "Colbalt-60 is a radioactive isotope used to treat cancers of the brain and other tissues. The religions that I am having trouble with are Catholic, Buddhist, Protestant, Methodist, Hindu, Islam, Mormon, Sikh, Judaism, and Taoist. How much time (in days) is required for the sample to releae a total of 7.2x10...3 days 10 days 13 days 33 days Quick survey assignment for math class regarding significant age gaps. A material has 32 atoms in all; 24 decayed and the rest undecayed. b) Determine the half-life of this radioactive isotope c) How long will it take for ... A gamma ray emitted by an atom of this isotope has an energy of 1.33 Me V (million electron volts; 1 e V = 1.602*10^-19 J). The age of a document is in dispute, so archaeologists test for carbon-14.Carbon-14 has a half-life of 5715 years, and currently living organisms decay at the rate of 15.3 disintegrations/ min per... If the half-life of strontium-90 is 27 years, what fraction of the strontium-90 absorbed in 1962 remained in people's ... Let y(t) denote the mass of a radioactive substance at time t.t. How long will it take for ½ of the original amount of Rubidium-87 to decay? The electron and neutrino are emitted at right angles and have momenta of 9.40 x 10^-23 kg·m/s, and 6.00 x 10^-23 kg·m/s, respectively. The radioactive element polonium decays according to the law given below where Q0 is the initial amount and the time t is measured in days.measurements of carbon 14 taken from linen wrappings of the book of isaiah from the dead sea scrolls indicate that the scrolls contain 79.5% of the carbon 14 expected in living tissue. A radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. Show the nuclear equation that leads you to this answer. Suppose this substance obeys the equation y′(t)=−14y(t). Q(t) = Q0 · 2-(t/140) If the amount of polonium left after 700 days is 45 mg, what was the initial amount present?Sample of 500gms radioactive substance decays according to the function A(t)-500-0.044t where t is the time in years. How many grams will remain after (a) 12,000 years (b) 24,000 years (c) 96,000 years? At the same time, she is anxious about her parents’ attitude towards her boyfriend. A scintillation counter detects radioactivity by: A) none of the answers.