If the initial mass of an Potassium was 121 grams will remain after 22 hours is 30.25 grams, then the half-life period of the Potassium is hours. O 18 O 10 O 11 16 14 ооооо

Q: Determine whether the following statement is true or false, and explain why. The half-life of a…

A:

Q: If the initial mass of an Potassium was 149 grams will remain after 20 hours is 37.25 grams, then…

A:

Q: The half-life of Carbon-14 is 15 years. How much of an initial 183 g sample will remain after 38…

A:

Q: If 250 mg of a radioactive element decays to 200 mg in 53 hours, find the half-life of the element…

A:

Q: A sample of a newly discovered element, West Virginium, has a half-life of 425 years. How long will…

A: Given half life of element is 425 years t1/2. Initial weight A0 is 803 mg and after decay is 401.5…

Q: If the initial mass of an Potassium was 159 grams will remain after 16 hours is 39.75 grams, then…

A:

Q: A grey squirrel population was introduced in a certain county of Great Britain 35 years ago.…

A:

Q: 30% of a radioactive substance has decayed after 10years, what is its half-life? 15.9 years 16.7…

A:

Q: The half-life of Carbon-14 is 10 years. How much of an initial 138 g sample will remain after 49…

A: Radioactive decay.

Q: A sample of a newly discovered element, West Virginium, has a half-life of 170 years. How long will…

A: We have to find the time required.

Q: 1. The population of Kuhala Island doubles every 3 decades. 2. The amount of radioactive isotope of…

A: Whether each given is an exponential function, exponential equation, or exponential inequality or…

Q: A wooden artifact from an ancient tomb contains 20 percent of the carbon-14 that is present in…

A: I have stated the used formula in the solution.

Q: 1. A sample of einsteinium-252 decayed to 64.3% of its original mass after 300 days. a) What is the…

A: Let 100 be the original mass 64.3% of 100 is  64.3100 of 10064.3100·100=64.3 Now we find out decay…

Q: The half-life of Carbon-14 is 14 years. How much of an initial 143 g sample will remain after 43…

A: use t half formula

Q: A sample of radium metal has a weight of 1.5 mg and a half-life of approximately 6 years

A: sample of radium metal has a weight of 1.5 mg and a half-life of approximately 6 years

Q: Wood deposits recovered from an archaelogical site contain 30% of the C-14 they originally…

A: According to the given information,

Q: The half-life of Strontium is 28 years. Suppose we have a 80 mg sample. How long will it take the…

A: Given: The half-life of Strontium is 28 years. We have to find the duration to take the sample to…

Q: Suppose that 10 grams of the 1 plutonium isotope Pu239 was released in the .Chernobyl nuclear…

A:

Q: A grey squirrel population was introduced in a certain county of Great Britain 35 years ago.…

A:

Q: The future lifetime at birth is de Moivre's Law on [0,95). If 8 = 0.05. Calculate āz.

A: Given: The future life time at birth is de Moivre's Law on [0,95] ς=0.05 Formula used: Sxx=1-xw…

Q: The half-life of Carbon-14 is 5 years. How much of an initial 154 g sample will remain after 26…

A: Given data- A = The amount present at time(t). h = The material's half life. A∘= The amount of…

Q: An element loses 31% of its mass every year. Find the half-life in this situation. The half-life is…

A: We will find the half life of the element.

Q: The half-life of a radioactive radium is 1650 * years, what percentage of the amount present now…

A: Here first we find rate of decay rate using half life formula t12=-1rln12wheret12=half lifer= decay…

Q: If the initial mass of an Potassium was 183 grams will remain after 22 hours is 45.75 grams, then…

A:

Q: The half life of a certain isotope is 6.13 hours. If we have a sample of 5.0 ounces of that isotope,…

A:

Q: Find the half-life (to the nearest year) of krypton if  r = −0.0641.

A: Given,              r = −0.0641

Q: The half-life of Carbon-14 is 5 years. How much of an initial 132 g sample will remain after 46…

A:

Q: A sample of radium has a weight of 1.5 mg and a half-life of approximately 6 years. Part A: How much…

A:

Q: A certain radioactive isotope has a half-life of approximately 1750 years. How many years to the…

A: Consider the amount is, A=Pert here, A is the isotope, P is the initial amount and r is the…

Q: Radium decomposes at the rate proportional to the present amount. If the half- life is 1600 years,…

A:

Q: A sample of radium has a weight of 1.5 mg and a half-life of approximately 6 years. How much of the…

A:

Q: A laboratory test confirms that 9 milligrams of a particular radioactive substance decreases to 7…

A: Answer and explanation is given below... Option (c) is correct

Q: in 1991, the body of a man was found melting in the snow of the alps of northern italy. an…

A:

Q: The radioactive isotope of potassium **K which is used in the diagnosis of brain tumors, has a…

A:

Q: A sample of a newly discovered element, West Virginium, has been discovered. A 648 mg sample has…

A:

Q: A laboratory test confirms that 9 miligrams of a particular radioactive substance decreases to 7…

A: Explanation of the answer is as follows

Q: A sample of radium has a weight of 1.5mg and a half-life of approximately 6 years how much of the…

A:

Q: 3. An isotope of sodium, Na - 24, has a half-life of 15 hours. A sample contains 42.8 grams of…

A:

Q: how long ago was the map drawn​ up? Round to the nearest year. Does the age of the map support its​…

A:

Q: Assume a quantity decreases by 7.5% in 5.3 hours. What is the half-life of the substance? hours

A: Calculating the half life of the substance using the given conditions

Q: The half-life of Carbon-14 is 11 years. How much of an initial 115 g sample will remain after 42…

A:

Q: The half-life of Carbon-14 is 7 years. How much of an initial 169 g sample will remain after 28…

A:

Q: Archaeologists uncover an artifact that has 20 mg of carbon-14. Before death, the artifact had 100…

A: Half life of a substance is given by, Nt=N012t/t1/2

Q: If the initial mass of an Potassium was 111 grams will remain after 10 hours is 27.75 grams, then…

A:

Q: Determine the half-life of the substance that decays from A, to A in time t. A, = 41, A = 16, t = 12…

A:

Q: A certain isotope decays so that the amount A remaining after t years is given by: A = Ao e-0.03t…

A:

Q: (a) After 20 years, 15% of the initial mass of the radium has decayed. (i) Find the half-life period…

A:

Q: 3. An artifact contains 25% of the Carbon-14 that it originally had. How long ago was the artifact…

A:

Q: The half-life of Plutonium-241 is 9 years. How much of an initial 159 g sample will remain after 38…

A:

Q: 21. Strontium-87 is used in the study of bones. After one hour, 78.1 mg remains of a 100 What is the…

A: Radioactive decay follows the first-order kinetics. To calculate the half-life of Strontium-87 first…