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How does radiometric dating work

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Many rocks and organisms contain radioactive isotopes, such as U and C These radioactive isotopes are unstable, decaying over time at a predictable rate. As the isotopes decay, they give off particles from their nucleus and become a different isotope. The parent isotope is the original unstable isotope, and daughter isotopes are the stable product of the decay. Half-life is the amount of time it takes for half of the parent isotopes to decay.
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Radiometric Dating Does Work!

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How does radiometric dating work?

Radiometric dating works by determining the ratio of the number of isotopes of an element and the number of isotopes the element it turns into over time. Since the rate at which certain elements decay and turn into different elements is understood, scientists are able to calculate the age of substances. During the formation of the Earth, radioactive elements became embedded in the minerals that make up the Earth's crust. Since many of the minerals seen on a daily basis contain elements that decay over time, scientists can determine the ages of certain types of rocks. The elements embedded in the Earth's crust decay over time because they are very unstable.
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How does radioactive dating work?

If you want to know how old someone or something is, you can generally rely on some combination of simply asking questions or Googling to arrive at an accurate answer. This applies to everything from the age of a classmate to the number of years the United States has existed as a sovereign nation and counting as of But what about the ages of objects of antiquity, from a newly discovered fossil to the very age of the Earth itself? Sure, you can scour the Internet and learn rather quickly that the scientific consensus pins the age of of the planet at about 4. But Google didn't invent this number; instead, human ingenuity and applied physics have provided it.
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