Essay On Radioactiviteit

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Vraag: wat is radioactiviteit? 1. Info: Radioactiviteit is een natuurlijk proces waarbij atomen spontaan scheiden en in kleinere atomen veranderen. Tijdens het scheiden stralen ze radioactieve straling uit. Straling is overal en zit in van alles. Van de grond tot de producten die je gebruikt. Straling kun je niet waarnemen met je zintuigen. Dat is niet erg want straling is in de meeste gevallen niet slecht voor je gezondheid. Ook je lichaam is een kleine bron van straling. Sommige stoffen stralen meer uit dan andere stoffen. Bronvermelding: Wat is radioactiviteit?. (z.d.). Geraadpleegd op 16 december 2013, http://epz.nl/kernenergie/radioactiviteit/wat-radioactiviteit Bruikbare informatie: Radioactiviteit is een natuurlijk proces waarbij atomen scheiden in kleinere atomen. Tijdens het scheiden stralen ze radioactieve straling uit. 2. Info: Radioactiviteit is uitstralen van straling door atomen. Elke atoom heeft positieve geladen protonen en neutrale neutronen, en omringd door negatief geladen elektronen. Meestal zijn de deeltjes in evenwicht. Maar soms is er bij de atoom de evenwicht verstoord doordat er elektronen wegschieten. De atoom trekt dat weer recht door alfa, bèta of gammastraling uit te stralen. Omdat de samenstelling van de atoom verandert ontstaat er een zo nieuw atoom. Als die atoom ook weer instabiel is gaat het zo door. Net zolang tot dat er weer een stabiele atoom overblijft en dat kan heel lang duren. Atomen die dit verschijnsel vertonen noemen we radioactief. Radioactieve straling is daarom een onjuiste verwoording want niet de straling is radioactief maar de atoom die uit elkaar valt. Voorbeelden van radioactieve stoffen die dagelijks worden gebruikt zijn jodium, cesium, strontium, plutonium en uranium. Meesta... ... middle of paper ... ...rgaan is dat jodium gebruikt zal het jodium ook hier naar toe gaan. Voor het steriliseren van de chirurgische instrumenten die worden gebruikt wordt vaak radioactieve straling gebruikt. Radioactieve stoffen worden ook gebruikt in onderzoek naar de chemische reacties in de cellen. In de industrie wordt radioactiviteit onder meer gebruikt voor: • het vinden van fouten in metalen constructies • het meten van de dikte van papier • het vinden van lekken in (ondergrondse) leidingen en lasnaden • het steriliseren van voedingsmiddelen Vroeger werden radioactieve stoffen gebruikt in brandalarmen. Deze zijn echter niet meer toegelaten. Bruikbare informatie: Bron: Radioactiviteit informatie over radioactiviteit en de gevolgen er van. toepassingen. (z.d.). Geraadpleegd op 16 december 2013, http://www.radioactiviteit.com/nuttige-toepassingen.html

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