Answer:
Radiometric dating, is called radioactive dating, is a technique used to determine the age of materials such as rocks. It is based on a comparison between the observed abundance of a naturally occurring radioactive isotope and its decay products, using known decay rates.
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Answer:
There are 1.8021⋅1024 molecules of CH4 in 48 grams of CH4 .
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Answer:
Calculate the frequency of light having wavelength of 456 nm.
1.22*10^8nm
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