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Define half-life of a radioactive substance.

Define half life of a radioactive substance.

The half-life of a radioactive substance is 10 days. The time taken for the ((7)/(8)) th of the sample of disintegrates is

The half life of a radioactive substance is 30 days. What is the time taken to disintegrate to 3//4^(th) of its original mass ?

The half life of a radioactive substance is 30 days. What is the time taken to disintegrate to 3//4^(th) of its original mass ?

The half-life period of a radioactive substance is 30 days. What is the time taken for 3/4 the of its original masss to disintegrate ?

The half-life of a radioactive substance is 40 days. A sample of it contains 1 mole nuclie. Calculate the number of disintegrations in the first second.

The half-life of a radioactive substance is 60 days. A sample of it contains 1 mole nuclide. Calculate the number of disintegrations in the first second.