Organic material found in archaeological digs can be dated accurately based on carbon-14 decay
The terms in bold link to topics in the AQA, Edexcel, OCR, WJEC and CCEA A-level specifications, as well as the IB, Pre-U and SQA exam specifications.
The isotope14Cis produced in nuclear reactions involving cosmic radiation.The amount of 14Cin a sample can be found by counting beta particles emitted in its radioactive decay or by mass spectrometry, using the motion of charged particles in electric and magnetic fields.
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