Dating rocks gcse physics

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Radiocarbon dating coursework

Why is carbon used for dating fossils? Which ratio is used to date rocks? As rocks become older what happens to the proportion of lead? What is the name given when ionising radiation is used to treat cancer? Cancers are formed when radiation collides with which part of a cell? Which is the most dangerous type of radiation inside our bodies? Which are the most dangerous types of radiation outside our bodies? What type of radioactive waste is mixed with concrete and put in a stainless steel drum in a purpose-built store? Which scientist or scientists actually tested the plum pudding model? What is released when a neutron hits a uranium nucleus in nuclear fission?

Section 7. Radioactivity, fission and fusion Contents a Units not included in this Teacher Pack b Radioactivity c Fission and fusion d Answers to exam-style questions. Overview of the section This section has just two topics. The first considers radioactivity.

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Carbon has a large number of stable isotopes. All carbon atoms contain six protons and six electrons, but the different isotopes have different numbers of neutrons. The amount of carbon in the atmosphere has not changed in thousands of years.

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Dating rocks gcse physics

Radio dating. What is Radio dating? The half - life of a radio isotope can be used to measure the age of things. The method is called radio dating. Radio dating can be used to measure the age of rocks see below and carbon dating can be used to date archaeological specimens.

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