Radiation

RADIOACTIVITY of import is blocked by make-up. Its positively aerated. Its touch by magnetic field. They come main office gold f fossil oil. Alpha beam of light is aforementioned(prenominal) as Helium atom. It is define by 4 He or 4 ? 2 2 genus Beta is negatively charged and is blocked by magnetic field. Its stopped by Aluminium. It is represent by 0 e or 0 ? -1 -1 da da da Gamma is not affected by magnetic field. It drive out penetrate lead. They are electromagnetic waves. Most isotopes are seismal i.e effect break into littler parts to release Alpha, Beta, and Gamma rays, a process called radioactive corrupt. one-half life is a time taken for one-half the atoms to decay.

Alpha decay: Radium(Ra) decays by Alpha liberation to choke Radon(Rn) 226 Ra 222Rn + 4 He 88 86 2 Beta decay: Polonium (Po) decay by Beta emission to perplex Astatine (At) 218 Po 218 At + 0 e 84 85 -1 Gamma emission Gamma emission causes no alternate in mass material body or atomic number. Half life This is the time taken for half the atoms to decay. Uses of radioactivity: 1. radioactive fertiliser gutter be ply to plants and then traced through with(predicate) the plant using a Geiger counter. This method acting is utilise to develop better fertilisers. 2. It mess be utilise to ferret out conditions of internal body organs like kidneys. 3. It is apply to look at word leaks from a pipeline carrying oil or gas. This saves take past time. 4. Sterilising. Gamma-rays can be used to kill bacteria, mould and insects in regimens, even after the food has been packaged. This prolongs the shelf-life of the food. 5. Thickness control. In authorship mills, the thickness of the paper can be controlled by touchstone how much beta-radiation passes...If you want to get a full essay, revise it on our website: Orderessay

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