Radiation

RADIOACTIVITY of import is blocked by make-up. Its positively aerated. Its change by magnetic field. They come home gold foil. alpha radiation is aforementioned(prenominal) as Helium atom. It is delineated by 4 He or 4 ? 2 2 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. about isotopes are unstable i.e effect break into smaller separate to release of import, important, and Gamma rays, a process called radioactive decay. 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 expelling to become Astatine (At) 218 Po 218 At + 0 e 84 85 -1 Gamma emanation 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 radioactivity: 1. Radioactive fertiliser can be fu nction to plants and then traced through the! plant using a Geiger counter. This system acting is employ to develop better fertilisers. 2. It can be utilise to detect conditions of internal body organs the likes of 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 annihilate bacteria, mould and insects in foods, even after the food has been packaged. This prolongs the shelf-life of the food. 5. oppressiveness 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

If you want to get a full essay, visit our page: cheap essay