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If the half-life of a radioactive substance is 10 hours how long will it take for 50 percent of it to decay?
The half-life of a radioactive isotope is defined as the time taken for the isotope to decay to half of its initial mass. So to decay to 50 percent of its initial mass will take one half-life of the isotope. One half-life of the isotope is 10 hours so the time taken to decay is also 10 hours.
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How do you calculate the decay constant for a radioactive substance?
The decay constant for a radioactive substance is calculated by dividing the natural logarithm of 2 by the half-life of the substance. The formula is: decay constant ln(2) / half-life.
How can one determine the decay constant of a radioactive substance?
To determine the decay constant of a radioactive substance, one can measure the rate at which the substance decays over time. By analyzing the amount of radioactive material remaining at different time intervals, scientists can calculate the decay constant, which is a measure of how quickly the substance decays.
How to calculate radioactive decay and its impact on the half-life of a substance?
To calculate radioactive decay, use the formula N N0 (1/2)(t/T), where N is the final amount of substance, N0 is the initial amount, t is the time passed, and T is the half-life of the substance. The impact of radioactive decay on the half-life of a substance is that it represents the time it takes for half of the radioactive atoms in a sample to decay.
What affect the half life of a radioactive substance A the mass of the substance B the temperature of the substance C the addition of a catalyst D the type?
A. The half-life of a radioactive substance is determined by the specific decay process of that substance, so it is not affected by the mass of the substance or the temperature. B. The mass of the substance does not affect the half-life of a radioactive substance. C. The addition of a catalyst does not affect the half-life of a radioactive substance. D. The type of radioactive substance directly determines its half-life, as different substances undergo radioactive decay at varying rates.
What is the relationship between time and the decay of radioactive substances as shown in the graph of radioactive decay?
The relationship between time and the decay of radioactive substances is shown in a graph of radioactive decay by demonstrating how the amount of radioactive material decreases over time. This decay occurs at a consistent rate, known as the half-life, which is the time it takes for half of the radioactive material to decay. The graph typically shows a gradual decrease in the amount of radioactive substance as time progresses, following an exponential decay curve.
Is it true that the half-life of a radioactive isotope decreases as the isotopes decay?
no, halflife is a constant for each isotope's decay process.
Half of the total amount of time it takes for all of a radioactive substance to decay is called the halflife of the substance?
okay
What is a half-life of radioactive substance if it takes 6 hours for 50 percent of it to decay?
6 hours. you have a hot one there!
How do you calculate the decay constant for a radioactive substance?
The decay constant for a radioactive substance is calculated by dividing the natural logarithm of 2 by the half-life of the substance. The formula is: decay constant ln(2) / half-life.
How can coin- tossing simulate radioactive decay?
Coin-tossing can simulate radioactive decay by assigning a probability of heads or tails to represent decay or stability of a radioactive nucleus. Consistent with the decay probability of a radioactive substance, you can randomly flip the coin to determine decay events over time. Over multiple throws, you can track the number of heads to emulate the decay rate of a radioactive substance.
What is the rate in halflife that radioactive decay occurs?
Half-life is the time it takes for one half of a certain type of atom (isotope) to decay. The amount of time varies a lot between different isotopes; in some cases it may be a fraction of a second, in another, it may be billions of years.
How can one determine the decay constant of a radioactive substance?
To determine the decay constant of a radioactive substance, one can measure the rate at which the substance decays over time. By analyzing the amount of radioactive material remaining at different time intervals, scientists can calculate the decay constant, which is a measure of how quickly the substance decays.
When the rate of radioactive decay becomes smaller half life becomes what?
When the rate of radioactive decay decreases, the half-life of the radioactive substance increases. This is because a smaller decay rate means that it takes a longer time for half of the radioactive atoms to decay. Consequently, the half-life, which is the time required for half of the substance to decay, extends as the decay rate diminishes.
How to calculate radioactive decay and its impact on the half-life of a substance?
To calculate radioactive decay, use the formula N N0 (1/2)(t/T), where N is the final amount of substance, N0 is the initial amount, t is the time passed, and T is the half-life of the substance. The impact of radioactive decay on the half-life of a substance is that it represents the time it takes for half of the radioactive atoms in a sample to decay.
Does the process of radioactive decay fall under the study of chemistry or physics or is it a combination of both?
Radioactive decay falls under chemistry, because the chemical properties of the substance are changed during radioactive decay.
How do scientists use the halflife of radioactive isotopes to date rocks and fossils?
The basic idea is to compare the abundance of a naturally occurring radioactive isotope within a material to the abundance of its decay products; it is known how fast the radioactive isotope decays.
If the half life of a radioactive substance is 10 hours how long will it take for 75 percent of it to decay multiple choice question is it 15 hours 10 hours 5 hours or 20 hours?
Its 5 hours. 50% of the substance is decayed at 10 hours (that is what half life means. It's full life is 20 hours). Multiple 75% times 20 hours to find that 75% is 15 hours. Subtracrt 15 hours from 20 hours to get the answer of 5 hours for the decay of 75% of the substance.
