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16 January, 14:04

What does the half-life tell about a radioisotope?

A. How long it takes for half of a sample to decay to another form

B. How long it takes for half of the sample to begin to decay

C. How long it takes a sample to lose half of its neutrons

D. How long it takes a sample to become completely stable

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Answers (2)
  1. 16 January, 15:19
    0
    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.
  2. 16 January, 17:32
    0
    It's option A as half life can be called as the time required for a radioisotope to decay into a more stable isotope compared to its current state.
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