What are Isotopes?, Atoms of a single element that have different number of Neutrons, What is an Ion?, An Atom that has lost or gained one or more electrons., What is Ionising Radiation?, Radiation that causes electrons to escape, What are sources of "background radiation"?, Radiation from space and from naturally radio active substances in the environment, % Sources of Background Radiation, Radon Gas 49%, Mediacl 15%, Grtound and Buildings 13%, Cosmic Rays 12% Food and Drink 10%, What is Radon Gas?, Radio active gas produced by rocks that contain uranium, How does Radon reach people?, Radon diffuses in the air, can build up houses with low ventilation, How does Radon harm people?, Radon mutates cells in the body and causes cancers, How do people who work with radiation check for radiation exposure?, They use film badges called "dosimeters", What is a unit of Radiation called?, A Becquerel, How do we measure radio activity?, Using a Geiger counter to measure counts per second
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RADIATION
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Asha35
KS4
Physics
Atomic structure
Radioactivity
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