What is the average life of a radioactive substance?
What is the average life of a radioactive substance?
The average life of a radioactive element is infinity.
What is the decay rate of the radioactive material?
The rate of decay, or activity, of a sample of a radioactive substance is the decrease in the number of radioactive nuclei per unit time.
What is the half-life of radioactive material?
one-half
The rate at which a radioactive isotope decays is measured in half-life. The term half-life is defined as the time it takes for one-half of the atoms of a radioactive material to disintegrate. Half-lives for various radioisotopes can range from a few microseconds to billions of years.
What is the half-life and average life of radioactive decay?
The half-life of a radioactive element is the amount of time it takes for one-half of any given quantity of the isotope to decay….Complete answer:
| Half life | Average life |
|---|---|
| ii. t12is the symbol for it. | ii. It is denoted by the symbol τ |
| iii. t12=half- life=(ln2λ)where λ is the decay constant. | iii. τ=average life=λ1 |
Is radioactive decay rate constant?
The rate of decay remains constant throughout the decay process. There are three ways to show the exponential nature of half-life.
What is rate of disintegration?
Chemical Kinetics of Class 12 The rate of disintegration of a given substance depends upon the nature of disintegrating substance and its total amount. It is defined as “time during which half the amount of a given sample of the radioactive substance disintegrates”.
Why is it called half-life?
The name Half-Life was chosen because it was evocative of the theme, not clichéd, and had a corresponding visual symbol: the Greek letter λ (lower-case lambda), which represents the decay constant in the half-life equation.
What is average life period?
What Is Average Life? The average life is the length of time the principal of a debt issue is expected to be outstanding. In loans, mortgages, and bonds, the average life is the average period of time before the debt is repaid through amortization or sinking fund payments.
How the average life time of a radioactive substance depends on the decay constant?
This shows that the population decays exponentially at a rate that depends on the decay constant. The time required for half of the original population of radioactive atoms to decay is called the half-life. The relationship between the half-life, T1/2, and the decay constant is given by T1/2 = 0.693/λ.