- Half-life - Archaeology Wordsmith
- Absolute dating — Science Learning Hub
- Carbon Dating & Archaeology CyArk
- BBC - GCSE Bitesize Carbon dating
Half-life - Archaeology Wordsmith
When ‘parent’ uranium-238 decays, for example, it produces subatomic particles, energy and ‘daughter’ lead-206.
Absolute dating — Science Learning Hub
Isotopes are important to geologists because each radioactive element decays at a constant rate, which is unique to that element.
Carbon Dating & Archaeology CyArk
These rates of decay are known, so if you can measure the proportion of parent and daughter isotopes in rocks now, you can calculate when the rocks were formed.
BBC - GCSE Bitesize Carbon dating
Because of their unique decay rates, different elements are used for dating different age ranges.
Scientific definition of radiocarbon dating:
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