What describes using organisms that were only alive during a specific time period to estimate the unknown age of items? a.  Radioactive dating Selected:b.  Law of superposition This answer is incorrect. c.  Relative dating d.  Index fossils

Q: Define radioactive half-life

A: Radioactive decay is the process by which an unstable atomic nucleus loses energy by radiation. A…

Q: The half-life of Carbon-13 is 5750 years. Samples taken at an excavation site show that a…

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Q: One useful radioisotope useful for dating the age of certain archaeological items is Carbon-14.…

A: Given :            t12= 5730  years              t= 17190 years          No. of half lives =…

Q: Choose the BEST answer to the following. Radioactivity has been around on Earth since the (a) middle…

A: Radioactivity is defined as the emission of particles from nuclei due to instability which arises as…

Q: This is my last question and I need help solving this asap! please help a girl out...thanks

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Why does carbon dating not give any useful data for dinosaurs?

A: Carbon dating is a technique to calculate the age of old objects by measuring the amounts of…

Q: The half-life of a certain element is about 5500 years.  Use the radiometric dating formula to…

A: in this question we use the radiometry formula .

Q: Can you help solve this?

A: Since there are multiple questions posted, we will answer the first question. Half-life is defined…

Q: Suppose you are hiking in the mountains of Utah and find a fossil of an animal that lived on the…

A: Given that we are hiking in the mountains of Utah and we find a fossil of an animal that lived on…

Q: A sample from human remains found near Stonehenge in England shows that 71.2% of the carbon-14 still…

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Q: The following are applications of x-ray except: A. Imagingbones B. Determination of cracks and flaws…

A: x-rays are used for bones imaging, determination of cracks and flaws, radioactive dating. Therefore,…

Q: While exploring a coal mine, scientists found plant fossils which had been preserved by an…

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Q: 1. The half-life of cobalt-60 is 5.3 years. If 4.0g of cobalt-60 are allowed to decay for 21.2…

A: Given Half life t12 = 5.3 years, Initial amount N0 = 4 gram 1(a)  now from formula         N =…

Q: In a certain rock, the ratio of lead atoms to uranium atoms is 0.300.Assume that uranium has a…

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Q: Explain the process of radiocarbondating.

A: Radiocarbon dating is a method for determining the age of an object containing organic material by…

Q: Question 15 The half-life of radioactive carbon C-14 is 5730 years. The radioactive carbon from an…

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Q: 18) What is the remaining amount of radioactivity when the Starting amount is 12.5-g and there was…

A: Given data: Initial amount of the sample m0 =12.5g Number of half- life n =4.25

Q: piece of fossilized wood has a carbon 14 radioactivity that is one eighth that of new wood. The…

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Q: 8. The half-life of certain type of carbon used for carbon-dating is 5730 years. Determine the age…

A: The time needed for a radioactive material to decay to half of its original amount is defined as the…

Q: SOME ISOTOPES USED FOR RADIOMETRIC DATING Daughter Isotope (D) Useful Dating Range Newly formed…

A: The Uranium-238 radioactively disintegrates into Lead-206. The half life of this nuclear reaction is…

Q: Which of the following is the best way to measure the age of the Earth? Examine rocks collected…

A: Required : Best way to measure the age of Earth.

Q: A wooden boat discovered just south of the Great Pyramid in Egypt had a carbon-14 contains of…

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Q: A 250g sample of Calcium-47 has a half-life of 4.536 ????. How much Calcuim-47 remains after six…

A: Given data:  Initial amount of calcium-47 (N0) = 250 g Number of half-lives (n) = 6 Required: The…

Q: (19) Remains recovered in a tomb are found to have 72% of its Carbon-14 remaining.  How old might…

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Q: What are the types of Radioactivity?

A: There are three types of radioactivity and they are: Alpha decay: An alpha particle is a helium…

Q: Carbon 14 half life if 5700 years. A newly discovered fossilized organism is estimated to have…

A: Given that               The half life of C-14 is (t12 )= 5700year               The initial amount…

Q: e the two major sources of radioactive waste? (II

A: Radioactive waste:- Nuclear reactors, fuel processing plants, hospitals, and research centers all…

Q: The Oldest Snack Food? In Bat Cave, New Mexico, archaeologists found ancient human remains,including…

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Q: The abundance of 40K is 0.012% of total natural potassium. The human body is 0.25% potassium by…

A: Since, the 70 kg human body has 0.25% of potassium by weight in which percentage of 19K40 is further…

Q: A fossilized bone is found to contain one-thousandth of the C-14 level found in living matter.…

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Q: Q1:-Explain how you can carbon-date the age of a sample, and why is carbon dating unable to provide…

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Q: Explain how "carbon dating" is used to establish the age of once living things.

A: Carbon dating is a well-known technique, which is used to determine the approximate age of…

Q: The radioactive element​ carbon-14 has a​ half-life of 5750 years. A scientist determined that the…

A: Given, Half life of radioactive element carbon-14 element ,t1/2 = 5750 years A scientist determined…

Q: What is carbon-14 dating?

A: The process that uses radioactive elements to estimate the age of the object containing organic…

Q: 1. A patient is given 0.050 mg of Technetium-99m, a radioactive isotope with a half-life of about…

A: Initial mass of Technetium = 0.050 mg final mass of Technetium = 0.0063 mg half life of technetium =…

Q: Imagine you are a scientist and you are working with a museum on an archaeology exhibit. They tell…

A: Goven  Amount left N = (1/32 ) of initial  If initial amount is N0,  Then N = N0/32

Q: You want to use radiometric dating to determine the age of a specimen. You use Isotope Z, which has…

A:

Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.