Law of Radioactive Decay: The Law of Radioactive Decay states that the rate at which a radioactive substance decays is proportional to the number of atoms present. This means that the more atoms of a radioactive substance there are, the faster the rate of decay. The law can be expressed mathematically as:
N(t) = N0 * e-λt
where N(t) is the number of radioactive atoms remaining at time t, N0 is the initial number of radioactive atoms, e is the mathematical constant 2.71828…, λ is the decay constant (a characteristic of the particular radioactive substance), and t is the elapsed time.
The law of radioactive decay is important because it allows scientists to predict the rate at which a radioactive substance will decay over time. This information is useful in many fields, including nuclear power generation, medical imaging, and radiocarbon dating. By knowing the rate of radioactive decay, scientists can determine how long a radioactive substance will remain active and how much radiation it will emit during that time. This information can help to ensure the safe handling and disposal of radioactive materials.
There are three main types of radioactive decay: alpha decay, beta decay, and gamma decay.
The Law of Radioactive Decay has many practical applications in a variety of fields, including:
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