Radioactiveradiometric dating definition


06-Aug-2016 10:01

What is the difference between relative dating and absolute dating? Relative dating : sequencing events in the order in which they happened Absolute Dating : method of estimating the age of a rock sample in years via radiometric techniques Both help us describe the timing and relationship of events through earths history. What is the relationship between decay rates and half lives.

Are there environmental factors that affect the decay rates of isotopes?

Universe : 13.5 Billion Solar System: 4.6 Billion - Earth : 4.55 Billion - Moon : 4.527 billion years old Anatomical Humans : 130,000 years How old are the rocks from the moon ?

- One half-life is the amount of time it takes for 50% of the parent isotope present to decay into its daughter isotope.

Under what circumstances is carbon dating not useful?

No Radioactive dating can tell us how old something is by measuring it’s radioactive isotope and it’s decay rate based on the element.

Each isotope decays at a particular and constant rate, measured in half-life.

Birth of the Universe, formation of the solar system, formation of the earth, formation of the moon, formation of the first anatomical humans.

radioactiveradiometric dating definition-2

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Not useful for determining ages of things older than 50,000 years or that were non-living. Phosphorus-32 is unstable and breaks down into Sulfur-32 with a half life of about 14 days .

Interestingly Phosphorus-32 is also very poisonous and was implicated in the assassination of a well know Russian dissident in Great Britain by Russian spies in 2006 .



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