Author Question: The span of time required for the radioactive decay of half the parent nuclei in a sample is known ... (Read 58 times)

Evvie72

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The span of time required for the radioactive decay of half the parent nuclei in a sample is known as the ______________.
 Fill in the blank(s) with correct word

Question 2

Atomic nuclei that decay of their own accord are said to be ______________.
 Fill in the blank(s) with correct word



ririgirl15

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Answer to Question 1

half-life

Answer to Question 2

radioactive, or radionuclides



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