Definition:
the average time needed for half the nuclei in a sample of a radioactive substance to undergo radioactive decay (the half-life of a substance does not equal half of its full duration of radioactivity)
Type of Speech:
ANCHOR (A North Carolina History Online Resource) is now its own website!
the average time needed for half the nuclei in a sample of a radioactive substance to undergo radioactive decay (the half-life of a substance does not equal half of its full duration of radioactivity)