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→Finding Half Life and Count Rate
: The [[Count Rate|count rate]] of a sample of [[Unstable Isotope|unstable isotope]] can be predicted given its initial [[Count Rate|count rate]], its '''half life''' and the [[time]] it has been given.
===Finding Half Life and Count Ratefrom a Table===
{| class="wikitable"
| style="height:20px; width:100px; text-align:center;" |Time /s