What Statement Concerning the Half-Life of a Radioactive Isotope Is

question 71

Multiple Choice

What statement concerning the half-life of a radioactive isotope is FALSE?

• A)The half-life of a radioactive isotope is the amount of time it takes for one half of the sample to undergo radioactive decay.
• B)The stability of a radioactive isotope is indicated by its half-life; isotopes with shorter half-lives are very unstable.
• C)A radioactive isotope with a short half-life emits its radiation quickly.
• D)The half-life of a particular radioactive isotope decreases as the amount of the radioactive material decreases.
• E)Different radioactive isotopes have different decay rates,and therefore have different half-lives.

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