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How do scientists decide which isotope to use, when dating a rock?

Sagot :

Answer:

Carbon dating only works for objects that are younger than about 50,000 years, and most rocks of interest are older than that. ... Scientists can determine how long ago an organism died by measuring how much carbon-14 is left relative to the carbon-12.

Explanation:

Answer:

Through testing them on elements of different atomic number

Explanation: