Archaeologists use radioactive decay of an isotope of the element carbon. Because it has a fairly short half-life, and is found in anything that was once living.
The act of producing radiation spontaneously is known as radioactivity. This is accomplished by an unstable atomic nucleus that want to give up some energy in order to move to a more stable form.
Archaeologists use radioactive decay of an isotope of the element carbon. Because it has a fairly short half-life, and is found in anything that was once living.
Hence, carbon is used the correct answer for the blank.
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