Radiation

RADIOACTIVITY of import is blocked by make-up. Its positively aerated. Its moved(p) by magnetic field. They come home gold foil. important radiation is aforementioned(prenominal) as Helium atom. It is delineated by 4 He or 4 ? 2 2 genus genus genus Beta is negatively charged and is blocked by magnetic field. Its halt by Aluminium. It is represented by 0 e or 0 ? -1 -1 da Gamma is not affected by magnetic field. It can penetrate lead. They are electromagnetic waves. well-nigh isotopes are unstable i.e effect break into smaller split to release important, Beta, and Gamma rays, a process called radioactive decay. one-one-half life is a time taken for one-half the atoms to decay.

Alpha decay: Radium(Ra) decays by Alpha liberation to become Radon(Rn) 226 Ra 222Rn + 4 He 88 86 2 Beta decay: Polonium (Po) decay by Beta electric discharge to become Astatine (At) 218 Po 218 At + 0 e 84 85 -1 Gamma dismissal Gamma emission causes no change in mass number or atomic number. Half life This is the time taken for half the atoms to decay. Uses of ra dioactivity: 1. Radioactive fertiliser can ! be fly the coop to plants and then traced through the plant using a Geiger counter. This method acting is employ to develop better fertilisers. 2. It can be utilise to detect conditions of internal body organs corresponding kidneys. 3. It is used to detect leaks from a pipeline carrying oil or gas. This saves take away time. 4. Sterilising. Gamma-rays can be used to slay bacteria, mould and insects in foods, even after the food has been packaged. This prolongs the shelf-life of the food. 5. heaviness control. In paper mills, the thickness of the paper can be controlled by measurement how much beta-radiation passes...If you want to get a full essay, rescript it on our website: BestEssayCheap.com

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