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the half life of the radioactive substance is used to determine the mass lost over a period of time. For example rubidium 85 has a half life of 10.756 years, therefore if you had 1kg of Rubidium 85 in 10.756 years it mass will have decreased to 0.5kg due to the radioactive decay. providing the half life of the material is know we can work out the age by seeing how much it had decayed
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How have scientists used radioactive dating to show that earth is about 4.6 billion years old?
by defining the age of rocks
How do scientist find the absolute age of a rock?
Radioisotopes are used by scientists to date rocks in a method called radiometric dating. The isotopes of an element are the atoms that have the same number of protons and electrons but different numbers of neutrons. When atoms of a radioactive isotope are included in the formation of a crystal, that crystal becomes the parent isotope. As the isotopes begin to decay, they become a daughter isotope. The convenient property of this phenomenon is that a certain parent isotope will ALWAYS decay to a certain daughter isotope. The rate of decay from parent to daughter isotope is called the half-life (time for half of the parent to become the daughter). Being familiar with and using isotopes such as Uranium-238, Uranium-235, and Carbon-14, scientists are able to calculate the age of a rock, fossil, etc. using the known half-life for each parent isotope.
How does relative dating show the geologic history of a region?
how does relative dating show the history of a region
What is a stable isotope?
Stable isotopes are chemical isotopes that are not radioactive, meaning that they do not spontaneously undergo radioactive decay.
What can rock fossils and original remains show about earths rock?
it can show a rocks age and what it has gone through
What method can scientists use to determine the absolute age of a rock?
They take samples and experiment on them and look at the samples with microscopes. The experiments can then show them the age of the rock. They say "how old are you mr rock" then the rock will say its ages ░░░░░▄▄▄▄▀▀▀▀▀▀▀▀▄▄▄▄▄▄░░░░░░░ ░░░░░█░░░░▒▒▒▒▒▒▒▒▒▒▒▒░░▀▀▄░░░░ ░░░░█░░░▒▒▒▒▒▒░░░░░░░░▒▒▒░░█░░░ ░░░█░░░░░░▄██▀▄▄░░░░░▄▄▄░░░░█░░ ░▄▀▒▄▄▄▒░█▀▀▀▀▄▄█░░░██▄▄█░░░░█░ █░▒█▒▄░▀▄▄▄▀░░░░░░░░█░░░▒▒▒▒▒░█ █░▒█░█▀▄▄░░░░░█▀░░░░▀▄░░▄▀▀▀▄▒█ ░█░▀▄░█▄░█▀▄▄░▀░▀▀░▄▄▀░░░░█░░█░ ░░█░░░▀▄▀█▄▄░█▀▀▀▄▄▄▄▀▀█▀██░█░░ ░░░█░░░░██░░▀█▄▄▄█▄▄█▄████░█░░░ ░░░░█░░░░▀▀▄░█░░░█░█▀██████░█░░ ░░░░░▀▄░░░░░▀▀▄▄▄█▄█▄█▄█▄▀░░█░░ ░░░░░░░▀▄▄░▒▒▒▒░░░░░░░░░░▒░░░█░ ░░░░░░░░░░▀▀▄▄░▒▒▒▒▒▒▒▒▒▒░░░░█░ ░░░░░░░░░░░░░░▀▄▄▄▄▄░░░░░░░░█░░ TROLL
How have scientists used radioactive dating to show that earth is about 4.6 billions years?
by defining the age of rocks
How have scientists used radioactive dating to show that earth is about 4.6 billion years old?
by defining the age of rocks
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How do scientist find the absolute age of a rock?
Radioisotopes are used by scientists to date rocks in a method called radiometric dating. The isotopes of an element are the atoms that have the same number of protons and electrons but different numbers of neutrons. When atoms of a radioactive isotope are included in the formation of a crystal, that crystal becomes the parent isotope. As the isotopes begin to decay, they become a daughter isotope. The convenient property of this phenomenon is that a certain parent isotope will ALWAYS decay to a certain daughter isotope. The rate of decay from parent to daughter isotope is called the half-life (time for half of the parent to become the daughter). Being familiar with and using isotopes such as Uranium-238, Uranium-235, and Carbon-14, scientists are able to calculate the age of a rock, fossil, etc. using the known half-life for each parent isotope.
How does relative dating show the geologic history of a region?
how does relative dating show the history of a region
