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12 August, 09:27

Which is the FALSE statement about C-14?

A.

It is a stable isotope.

B.

It is a radioactive isotope.

C.

It is present in all living things.

D.

It is used to calculate the age of remains.

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Answers (2)
  1. 12 August, 09:34
    0
    Answer : The false statement is, (A) It is a stable isotope.

    Explanation:

    Isotope : It is defined as the element that have the same number of protons but have the different number of neutrons of each of the atom.

    Carbon has three isotopes which are carbon-12, carbon-13 and carbon-14.

    Carbon-14 is an unstable isotope which is radioactive isotope and it is present in all the living things.

    Carbon-14 is used to calculate the age of of remains.

    Hence, the false statement is, (A) It is a stable isotope.
  2. 12 August, 09:35
    0
    The answer is: A

    C-14 is not stable and this is the reason why it goes through radioactive decay.
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