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23-10-2020
Biology

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PLZZ HELP THIS ON A TEST!!
What is Half-life?

Question 15 options:

The amount of time it takes for half the nuclei in a sample of the isotope to become radioactive

The amount of time it takes for half the nucleus of the isotope to decay

The amount of time it takes for half the nuclei in a sample of the isotope to decay

the amount of time it takes for half the number of protons in the nucleus to decay

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23-10-2020

Answer:

The amount of time it takes for half the nuclei in a sample of the isotope to decay.

Explanation:

A half life is the time required for one half the atoms of a given amount of a radioactive substance to disintegrate.

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