Use Radioactive Decay Calculator to obtain the exact radioactive decay or half-life of the isotope easily. All you have to do is enter the isotope name and initial activity, decay time and half-life details to get the final activity value.
Half-Life Radioactive Decay Calculator: Want to calculate the radioactive decay of a substance in an easy way? Then you must check out this page. Here, we are offering simple steps to solve the half-life and radioactive decay of the substance. Read on to know the radioactive decay definition, formula. Also, get the example questions with solutions for a better understanding of the concept.
Go through the step by step procedure to find the radioactive decay and half-life of the substance.
Radioactivity is the phenomenon exhibited by the nuclei of an atom as a result of nuclear instability. The radioactive decay is defined as the spontaneous breakdown of the nucleus, that results in the release of energy and also the matter from the atomic nucleus. The radio isotopes do not have enough binding energy to hold the nucleus in the atom.
The three important types of radioactive decay are Alpha decay, Beta decay and Gamma decay.
The radioactive decay formula is A = A0 e-0.693t/T½
A is the final activity
A0 is the initial activity
t is the decay time
T½ is the half-life
Question: If the initial activity is 100, half-life is 15 seconds, and decay time is 10. Find the final activity?
initial Activity A0 = 100
Decay time t = 10
Half-life T½ = 15
Final activity is A = A0 e-0.693t/T½
A = 100 e-0.693 * 10/15
Therefore, final activity is 63.002
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1. How to calculate radioactive decay?
The steps to find the radioactive decay are given here. Divide the decay time by the half-life, multiply the result with -0.693. Get the exponential of the product and multiply it with the initial activity to obtain the final activity.
2. What is meant by radioactive decay?
Radioactive decay is defined as the spontaneous breakdown of the nucleus, that results in the release of energy and also the matter from the atomic nucleus.
3. What are the 5 types of radioactive decay?
The 5 different types of radioactive decay are alpha decay, beta decay, gamma emission, positron emission (β+ decay), and electron capture.
4. What is the radioactive decay formula?
The radiocative decay formula is A = A0 e-0.693t/T½.