How do you calculate age using half-life and fraction remaining?

alexi324 · Mar 20, 2007

hey everyone, do you know the formula used to compute for the AGE of a substance if its half-life and fraction remaining are given? please help me.. thank you..

Astronuc · Mar 20, 2007

During each half-life period, half of the material existing at the beginning has decayed by the end of the period - hence the term 'half-life'.

This page and its links provide the information one seeks.
http://hyperphysics.phy-astr.gsu.edu/hbase/nuclear/halfli.html

How do you calculate age using half-life and fraction remaining?

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