Protactinium has a half life of 3.28 x 104 years. Estimate the decay constant.
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- Most of the heavy nuclei will undergo decay to become stable by reducing the number of neutrons or protons. The rate at which unstable radioactive nuclei decay in a sample of material is called the activity of the sample.
- The decay probability per nucleus per second is called the decay constant it is given by,
Here t1/2 is known as the half-life of the nucleus. It is the time that it takes for the activity to be reduced by half.
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