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Chp 8 definitions
Chemistry Leaving cert Chapter 8 definitions only
Question | Answer |
---|---|
Radioactivity | The spontaneous break down of unstable nuclei with the emission of one or more types of radiation. |
Nuclear reaction | The process that alters the composition, structure or energy of an atomic nucleus. |
Half-life | The time that is taken for half of the nuclei of any given sample to decay. |
Radioisotope | A radioactive isotope. |
Radiocarbon dating (carbon dating) | The technique used to determine the age of an object containing carbon. It is based on the ration of carbon-14 to carbon-12 in the object. |