Search: The half life of gold-197

Gold-198 with a half life of 2.6 days is used to diagnose and treat liver disease. Write a half life... The half life of gold-197 is 10.6. What fraction of a sample remains after 21.2 years? 3. The half-life of a certain drug in the human body is 8 hours how long it would take for a dose... What is the half-life of an isotope if it decays to 12.5% of its radioactivity in 18 minutes? The half-life of Th-232 is 1.4E10. Find the number of disintegrations per hour emitted by 1 mol of T... The half-life (t1/2) of a first order reaction is 0.100 s. What is the rate constant? a. 6.93 s-1... If the half life of Ir - 131 is 42 days, how much would be remaining after 168 days? The half-life for the second-order reaction of a substance A is 58.2 s when A0 = 0.63 mol L-1 Calcul... The half-life for the first order reaction of a substance A is 50.5 s. How much time is needed for t... ok so i got... the half life of carbon-14 is 5730 years, the relation c+(1/2)^ N/5730 is used to ca... Given that the half life of c 14 is 5,700 ,use the method c 14 dating to determine the age of a fos... Ba-140 has a half life of 13.0 days. What fraction of a sample will remain after 39 days? The half-life of xe-133 is 126 hours. Starting with 250 mg, after 500 hours around how many mg remai... Consider that the half-life of Polonium-210 is 140 days.What approximate daily percentage of decay d... The half-life of I-131 is 8.00 days. If a medical treatment involves a dose of 400. mg of I-131, how... what is the half-life of the nuclide The half-life of the following first order reaction is 231 seconds. What percent of the original con... The half-life of P-32 is 14 days. How long after a sample is delivered can a laboratory wait to use... 1. The half-life for the (first-order) radioactive decay of 14C is 5730 yr (it emits a β ray wit... What is the half-life (in h) for the decomposition of O3 when the concentration of O3 is 2.37 ✕ 10−6... The half life of Am-241 is 432 y. If 2.00 g of Am-241 is present in a sample, what mass of Am-241 is... The half-life for the second-order reaction of a substance A is 55.8 s when concentration of initial... What is the half-life of a 100.0 g sample of nitrogen-16 that decays to 12.5 g of nitrogen-16 in 21.... K-42 has a half-life of 12.4 hours. If you begin with 250g of K-42, determine how much you will hav... If the half-life of a 20.0g is known to be 24 minutes, how long will it take for only 5.0 grams of t... I have: the half life of U-238 is 4.5 x 10^9 yr. A sample of rock of mass 1.6g produces 29 disinteg... The half-life for the first-order decomposition of is 1.3*10^-5. N2O4--> 2NO2 If N2O4 is int... If the half-life of a certain radioactive substance is 2000 years, estimate how many years must elap... The half-life for the first-order conversion of A to B is 56.5 hours. How long does it take for the... 1. The half-life of a first-order reaction is 9.89 minutes. How many minutes will have elapsed after... If C14 has a half-life of 4,000 years, what fraction will be remaining after 36,000 years? If I 131 has a half-life of 8 days, what fraction will be left after a year? If 6.90 g of (half-life = 5.30 y) are allowed to decay, how many grams would be left after 1.00 y a... 1. What is the half-life of Strontium-90? Explain your answer. Honestly I don't know how to get t... i know that the half life of strontium 90 half-life is 28.8 but how can i explain this??? What is the half-life of the element Lokium? Ba has a half-life of 283.2 hours. How long would it take for the 50 mg of Ba in a sample to decay t... If the half-life of a first-order decomposition reaction is 24.2 minutes, how long will it take for... The​ half-life of a certain radioactive element is about 1500 years. After 2800 ​years, what per... If the half life of Pu-239 is 2.4 x 10^4 years, how many years are required for a 20-gram sample of... What is the half-life of a compound if 69 percent of a given sample of the compound decomposes in 59... half life carbon -14 is 5,730 years. If you start out 50 grams, how long will it take until it reach... ions have a half life of 1.8*10exp(-8)sec. A pion beam leaves an accelerator at a speed of 0.8c, Wha... Carbon-14 has a half-life of 5730 years. How long will it take 17 grams of carbon-14 to be reduced t... The half-life of C14 radioactive is 5760 yr. After how much time will 200 mg C14 sample be reduced t... Uranium-238 has half life of 4.51 * 10^9 years Uranium-234 has half life of 2.48 * 10^5 years Thor... Carbon-14 has a half-life of approximately 5,730 years. How many half-lives have occurred in a sampl... Pu-239 has a half-life of 24110 y. If 1.00 kg of this isotope is present in the used fuel rods of a... The half life of radium is 3.82 days.In what time will the activity decay to 1/16 of its original va... the half-life of iodine-131 is 8 days. how much iodine-131 will be left After 35 grams sample after... Radium-221 has a half-life of 30 s. How long will it take for 95% of a sample to decay Iron -59 has a half life of 45.1 days. How old is an iron nail if the Fe-59 content is 25% that a ne... If a substance has a half life of 600 seconds. If a scientist begins with an initial amount of 1kg c... Suppose that the half-life of a substance is 250 yrs. .If there were initially 100 g of substance .H... Explain how the half-life of a radioactive isotope affects the usefulness of that isotpe in dating s... The half-life of carbon 14 is 5730 years. if a 1 g sample of old carbon is 1/8 as radioactive as 1 g... 2. The half-life of a radioactive element is important when considering its application in medicine.... The half-life of a reaction was found to be inversely dependent on the concentration of the starting... The half-life of 232Th is 1.4 * 10^10. Find the number of disintegrations per hour emitted by 1 mil... The half-life of Palladium-100 is 4 days. After 12 days a sample of Palladium-100 has been reduced t... Potassium-40 has a half life of 1.2 billion years and decays into the stable daughter isotope Argon-... The half-life for the process 238 U --> 206 Pb is 4.5*10^9 yr. A mineral sample contains 66.0 mg of... the half life of isotope X is 2.0 years how many years would it take for 4.0 mg sample of X to decay... The half life of Carbon-14 is 5730 years. How much of a 1.00g sample of Carbon-14 will remain after... The half-life of a radioactive substance is one day, meaning that every day half of the substance ha... The half-life of the plutonium isotope is 24,360 years. If 10 grams of plotonium is released into th... The half-life of phosphorus-32 is 14.26 days. The decay constant is k=4.86×10−2/days. If you accide... Iron -59 has a half -life of 45.1 days. How old is an iron nail if the Fe-59 content is 25% that of... The half-life of carbon-14 is about 5700 years. You find a piece of cloth painted with organic dye... To bobpursley, the half life is 40.(potassium 40) The half life of radon 222 is 3.82 days. If the initial mass of a sample of radon 222 is 198.72 gram... The half life of Carbon-14 is 5730 years. a. find the rule of the function that gives the amount... Iron-59 has a half-life of 45.1 days. How old is an iron nail if the Fe-59 content is 25% that of a... Question The half-life of uranium-238 is 4.5 × 10^9 years. The half-life of uranium-234 is 2.5 ×... fluorine-18 half life of 110 min if 100mg was shipped at 8:00 am how many mg are still active at 1;3... if 1g of a drug whose half-life is 9 hours is administered intravenously, how much of the drug is le... Strontium-90 has half-life of 28 years. if a 1.00-mg sample was stored for 112 years. what mass of S... the half-life of carbon-11 is 20 minutes. How long will it btake for 600g of carbon-11 to decay to 3... a drug has a half life of 5 hours. write the exponential function that gives the concentration of th... carbon 14 has a half life of 5715 years. If you start with a 5 gram sample of 14C, what mass is left... indium-115 has a half life of 4.5 hours, if you start with a 12.0mg sample of indium-115, how much w... Nitrogen-13 has a half-life of 10 minutes. Given a starting mass of 2.00 g of nitrogen-13, how many... the half life of oxygen-15 is 124 s. if a sample of oxygen-15 has an activity of 4000 Bq, how many m... If Radium-223 has a half life of 10.33 days, what time duration would it require for the activity as... Iron-59 has a half-life of 45.1 days. How old is an iron nail if the Fe-59 content is 25% that of a... A half-life of mercury-195 is 31 hours. If you start with a sample of 5.00g of pure mercury-195, ho... The half-Life of radioactive earthium is 2651 years. Find how many years it will take 100 grams of e... The half-life of sodium-24 is 14.9 hours. A hospital buys a 40 mg sample of sodium-24. a) How many... The half- life of a positron is very short. it reacts with an electron, and the masses of both are c... Beryllium-7 has a half-life of 53 D. A sample was observed for one minute and there were 26,880 deca... If the radiological half life of a material is 31 minutes, and you have 77 grams now, how much did... The half-life of carbon-14 is 5730 years. If we start with 10 grams of carbon-14, after 5730 years,... The half-life of a radioactive isotope is 10 days. If 3.2 kg are present now, how much was present 3... If half life of iodine 131 is 8 days, how much from 32g remain after 40 days (5 half lives). The half life of phosphorus -32 is 14.3 days. What percentage of an original samples radioactivity r... 11) The Half-Life of Tylenol is approximately 3 hours. If you take 1000mg, how Tylenol much is left... The​ half-life of​ carbon-14 is 5600 years. If a piece of charcoal made from the wood of a tree show... Aluminum-30 has a half-life of 3.6 seconds. a) What percentage of an initial sample will remain aft... The half-life of carbon-14 is 5730 years. How much of a 50 g sample of carbon-14 is present after 11... If the half-life of iodine-131 is 8 day, how much would remain undecayed after 8 day if we started w...