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Line 1: − <i><small>For the video game series see [[Half-Life (video game series)]].</small></i> −
we don't "disambig" terms that collide with video games
'''Half-life''' is the time it takes for half of the original sample of a [[radioactive]] [[isotope]] to decay.<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref> Knowing these decay rates are important for dating, such as with [[carbon|carbon-14]].
'''Half-life''' is the time it takes for half of the original sample of a [[radioactive]] [[isotope]] to decay.<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref> Knowing these decay rates are important for dating, such as with [[carbon|carbon-14]].