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Today, 00:27

Which property of argon makes it useful for potassium-argon dating?

It decays into potassium.

It is an unstable element.

It remains trapped in rock.

It is useful only for dating newer roc

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  1. Today, 00:48
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    It is an unstable element.

    Explanation:

    Potassium argon dating is a radiometric dating method used for dating archeological materials like rocks. Geologists have used this method to date rocks that are over 4 billion years old. It is based on the fact that some of the potassium isotopes k-40, decays to gas Argon as Ar-40. It has been used to measure wide variety of ages.
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