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Nuclear Chemistry: Crash Course Chemistry #38
Video about dating uses the properties of atoms:
In other words, it is the obligation of geochronologists to try to prove themselves wrong by including a series of cross-checks in their measurements before they publish a result. The measurement of the daughter-to-parent ratio must be accurate because uncertainty in this ratio contributes directly to uncertainty in the age. Substituting this in equation 6 gives If one chooses to use P to designate the parent atom, the expression assumes its familiar form: Figure 5: Understanding the ages of related fossil species helps scientists piece together the evolutionary history of a group of organisms. Principal cosmogenic and uranium-thorium series radioisotopes Source: The decay constant must be known. Radiation levels do not remain constant over time. If the same index fossil is found in different areas, the strata in each area were likely deposited at the same time.
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