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NRPP RADON EXAM LATEST UPDATE
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NRPP RADON EXAM LATEST UPDATE The nucleus of an Atom contains - ANSWER Protons and neutrons Atomic number of an element reflects... - ANSWER The number of protons The mass number reflects the number of... - ANSWER Protons and neutrons Radioactive Particle Release - ANSWER Alpha - Most Damaging (particle = 2 protons and 2 neutrons)Mass and Velocity) Beta - Limited Damage (electron size particle) Gamma - Minor Damage (light wave) Radon 222 (mass number) has __ protons and __ neutrons - ANSWER 86 (mass number) protons and 136 neutrons Ion - ANSWER One or more electrically-charged atoms where protons and electrons are not equal Ionizing radiation - ANSWER Energetic radiations that can impact and atoms such as those in human tissues, and cause ions Inert - ANSWER Chemically inactive Radium - ANSWER -Produces radon -decay product of thorium and uranium Half life of Radon 222 - ANSWER 3.8 days Characteristics of RDPs - ANSWER -short-lived -have static electric charges -chemically reactive -solid particles Radon 220 has a half life of - ANSWER 55 seconds The level of radioactivity is measured in___ - ANSWER Curies 1 curie= __ disintegrations per minute - ANSWER 37 billion Radon is measured in... - ANSWER Picocuries per liter One pCi/L = __ disintegrations per minute/per liter of air - ANSWER 2.2 One picoCurie is ___ of a Curie - ANSWER One trillionth Alpha emitters in the RDP chain: (2) (RDPs that produce alpha particles) - ANSWER Polonium 218 and Polonium 214 Working Level X ___= estimate of pCi/L - ANSWER 200 RDPs are measured in - ANSWER Working Level Equilibrium Ratio (ER) - ANSWER % of RDPs suspended in air relative to total RDPs created Commonly assumed ER indoors: - ANSWER .5 (.3 to .7) A high ER= - ANSWER Little air movement or low outdoor air exchange A low ER = - ANSWER A lot of air movement and perhaps filtering Radon is a class _ carcinogen - ANSWER AThe benefits of buying summaries with Stuvia:
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