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The time it takes for half of the radioactive element to decay is the element's what?
The time it takes for half the atoms in a sample of a radioactive element to decay is called the half life.
What is the term given to the time it take for one half of a sample of radioactive nuclei to decay?
The term is called half-life. It is the time it takes for half of the radioactive nuclei in a sample to decay.
What does Pu-239 has a half-life of?
Pu-239 has a half-life of 24,110 years.
Do all elements have a half-life?
No, not all elements have a half-life. Half-life is a property of radioactive elements that undergo decay over time. Non-radioactive elements do not have a half-life because they do not decay in the same way.
How long will it take half of a radioactive sample to decay?
The time it takes for half of a radioactive sample to decay is known as the half-life. Each radioactive element has a unique half-life, which could range from fractions of a second to billions of years. The half-life remains constant regardless of the size of the initial sample.
What is half-life of the isotope k-39?
1939K is stable and non-radioactive. It, therefore, has no half-life.
What is the formula for half-life?
In chemistry, the half-life of a reaction is defined as the time needed for the concentration of a reactant to decrease to half of its initial concentration. According to that definition, the half-life of the reaction will be t1/2 = 0,693/k where k is the equilibrium constant for that reaction at a specific temperature.
A first order reaction is found to have a rate constant t k equals .0000739 find the half life of this reaction?
Since the reaction is first-order, the half-life is constant and equals ln(2)/k, and the units of k are s-1. In this case, the half-life is ln(2)/(.0000739 s-1) = 9379.529 seconds.
What are uses for half-life?
dA/dt=-KA A=A0e^-Kt when A=0.5* A0 0.5=e^-K*t half-life 0.693/K=t (1/2) Radiative dating Parent to daughter. Parent should be abundant, daughter should be rare. Most methods used for 10 half life.
What is the half-life of the reaction C2H6(g) and rarr2CH3(g)?
The half-life of the reaction ( \text{C}_2\text{H}6(g) \rightarrow 2\text{CH}3(g) ) depends on the order of the reaction. For a first-order reaction, the half-life is constant and can be calculated using the formula ( t{1/2} = \frac{0.693}{k} ), where ( k ) is the rate constant. If the reaction is second-order, the half-life depends on the initial concentration, calculated using ( t{1/2} = \frac{1}{k[\text{C}_2\text{H}_6]^0} ). Thus, without specific rate constants or concentration values, the exact half-life cannot be determined.
How do you calculate the half life of a zero order reaction?
For a zero order reaction, the half-life is calculated using the equation: t1/2 = [A]0 / 2k, where [A]0 is the initial concentration of the reactant and k is the rate constant of the reaction. The half-life is independent of the initial concentration of the reactant in zero order reactions.
What is the order of reaction if the half life of a reaction is halved as the initial concentration of the reactant is doubled.?
Second order. If the half life of a reaction is halved as the initial concentration of the reactant is doubled, it means that half life is inversely proportional to initial concentration for this reaction. The only half life equation that fits this is the one for a second-order reaction. t(1/2) = 1/[Ao]k As you can see since k remains constant, if you double [Ao], you will cause t(1/2) to be halved.
What has the author K D Pillay written?
K. D. Pillay has written: 'A Seychellois Tamil's half a century of experiences in Seychelles' -- subject(s): Social life and customs, Businesspeople, Biography
What is the total mass of a 10. gram sample of 42k that will remain unchanged after 12.4 hours?
To determine the remaining mass of a 10-gram sample of (^{42}\text{K}) after 12.4 hours, we need to know its half-life. The half-life of (^{42}\text{K}) is approximately 12.36 hours. After 12.4 hours, which is slightly more than one half-life, the mass will be reduced to about half of the initial mass. Thus, approximately 5 grams of the original 10-gram sample will remain unchanged after 12.4 hours.
What is half of 3k?
1.5 k
What is 6 more than half k?
1/2k + 6 or 0.5k + 6
How is 6 more than half of k written?
k/2 + 6
