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Q: A radioactive isotope called RI which has a half-life of 9 million years A geologist has used radiometric dating and determined the rock to be approximately 18 million years old How many half lives?
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Related questions

Radioactive dating enables geologist to determine what?

The age of rocks can be determined by radioactive dating.


What does radiometric dating tell geologist about some rocks and minerals?

their ages


When is the radiometric clock set in the lifetime of a rock?

The radiometric clock is set when the rock is formed. Because this is when it sets, radiometric dating is used by geologist to find out when the rock was formed.


What process does a geologist follow in order to figure out the age of a rock using radiometric dating?

Their ages


What is one radioactive isotope the geologist can use to learn exact age of the rock?

Absolute dating is a radioactive isotope the geologist can use to learn the exact age of the rock.


What does radioactive dating enable geologist to determine?

It helps determine the absolute ages of rocks


What information did geologist use to develope geologic time scale?

Radiometric dating and association of fossils with time scales during the periods when life existed.


How does a geologist determine absolute age?

Geologists determine absolute age of rocks by using radioactive dating.


What is one radioactive isotope the geologists can use to learn the exact age of the rock?

Absolute dating is a radioactive isotope the geologist can use to learn the exact age of the rock.


What is Radioactive dating of rock samples?

Radioactive dating of rock samples determines the age of rocks from the time it was formed. Geologist determine the age of rocks using radioactive dating. The radioactive dating relies on spontaneous decomposition into other element. The spontaneous decomposition is called radioactive decay.


How do geologist know that earth and the solar system are approximately 4.6 years old?

The details are quite complicated, but as I understand it, the main evidence is radioactive decay. The exact mix of isotopes of different elements in a compound can provide evidence of how old it is (sometimes this might mean, when a substance solidified), since the mix of isotopes will change over time, in case some of the isotopes are radioactive.


How do geologist know that earth and the solar are approximately 4.6 billion years old?

The details are quite complicated, but as I understand it, the main evidence is radioactive decay. The exact mix of isotopes of different elements in a compound can provide evidence of how old it is (sometimes this might mean, when a substance solidified), since the mix of isotopes will change over time, in case some of the isotopes are radioactive.