61 termsalexandralaurenzChem Chapter 11STUDYPLAYTerms in this set (...)The major part of the average exposure of humans to radiation comes fromNaturally occuring sourcesRadiation with enough energy to knock electrons off atoms or molecules is known asIonizing radiatoonAtoms that have the same atomic number but different numbers of neutrons areIsotopesWhich of the following has particles has a mass of 1 amu and a charge of 0?NeutronOne difference between a chemical reaction and a nuclear reaction is that in a nucelear reactionAtoms often change from one element to anotherNitrogen-13 has a half life of 10 minutes. How much of a 128 mg sample would remain after 40 minutes?8 mgIn carbon-14 datingThe radioactivity of carbon occurs naturallyWhich of the following is the most penetratingGamma rayThe isotope of carbon that is used for radioisotopic dating of previously living object isCarbon 14In nuclear chemistry an atom is referred to as what?Nuclide, by the number of protons and neutrons in its nucleusWhat does ionizing radiation disruptDNA, causing mutationsWhat are conserved during nuclear equationsAtomic number(number of protons) and mass number(number of nucleons)Nuclear equations are balanced whenThe sum of nucleon numbers and sum of atomic numbers on each side are the sameFor the most common types of radioactive decay, the order of mass from heaviest to lightest isGamma, beta, alphaAn electron emitted from the nucleus during some kinds of radioactive decay is known asA beta B particleOrder of least penetrating rays to human tissueAlpha, beta, gammaThorium 234 undergoes beta decay.. What is Q234 PA 91In nuclear reactions what happens to massSmall amounts of mass are converted to large amounts of energyIdentify the missing particle in the following nuclear equation234 PU 94What is the effect of this decat 9943TC > 9944RU+O-1eA neutron is converted to a protonGamma rays areVery high energy, very short wavelength, electromagnetic radiationWe are constantly exposed to naturally occuringBackground radiationRadioisotopesIsotopes that undergo changes in nucleon number, atomic number or energy during the radio active decay processIonizing radiationIncludes nuclear radiation and x rays and causes harm by lodging electrons from living tissue and forming ionsWhat is the becquerelThe unit of radioactive decay. 1 bq=1 disintegrationWhat is transmutationThe conversion of one element into another cannot be carried out by chemical means but can be accomplished by nuclear processWhat is half lifeThe time it takes for half of a sample to decayWhat is bombardingBombarding a stable nucleus with energetic particles can cause artificial transmutationwhat happens during electron captureA type of decay in which a nucleus absorbs one of the atoms electronsRadiation with enough energy to knock electrons off atoms or molecules is also known asIonizing radiationsThe major part of the average exposure of humans to radiation comes fromNaturally occuring sourcesThe most stable elements haveA high bonding energy per nucleonThe use of radioisotopes as tracers in medical and environmental research takes advantage of the fact that isotopesGenerally behave identically in chemical and physical processesIf it were possible to obtain cubic centimeters of pure atomic nuclei, its mass would beApprox 1.2 x 10 kgCosmic rays areHigh energy produced by the sunIonizing radiationAll of the aboveAll of the following are known to be ionizing radiation expectRadio wavesAtoms that have the same atomic number but different numbers of neutrons areIsotopesAn alpha particle is the same asHelium 4 nucleusIn nuclear equations we balanceNucleons (protons and neutrons)Which decay has no massGammaThe largest source of natural background radiation isRadonWhich particle is identical to an electronBeta, where atomic number increases, nucleons stay the sameThe process in which two smaller nuclei combine to form a larger nucleusNuclear fusionSodium 24 has a half life of 15 hours. How much of a 20 mg sample would remain after two half lives?5 mgWhich of the following statements about the use of radioisotopes to irritate foods is not trueThe taste and appearance of irradiation food undergoes a major changeAn electrochemical cell is a device that converts chemical energy imtoElectrical energyWhich of the following is not true of explosionsThe products are generally liquids or solidsCarbon 14The isotopes of carbon that is used for radioisotopic dating of previously lining objects isElectron captureA nucleus absorbs an electron from the inner shell charge -1Free radicialsCan disrupt cellular processBackground radiation3/4 of all exposure to radiationRadiationOften effects the fastest growing cells and tissues like white blood cells and bone marrowA decrease of 1The process of emission results in what change in the atomic numberPosition emissionIs a particle equal in mass to an electron but with opposite charge (charge 1+)5730 yearsThe half life of carbon 14Use of tracersTo detect underground pipes, determine friction wear in postal ringsAlpha radiatonBulky, easily stopped with paperBinding energyWhen proton and neutron combine to form nucleus a small amount of mass is converted into energyMethaneSimplest Alkane isAlkanes will undergo addition reactionWhich of the following is not a property of AlkanesYOU MIGHT ALSO LIKE...50 termsnuclear chemistry46 termsCh. 1369 termsNuclear ChemistryOTHER SETS BY THIS CREATOR22 termsChemistry final 325 termsChemistry final #231 termsChemistry final23 termsWaterTHIS SET IS OFTEN IN FOLDERS WITH...70 termsChapter 1070 termsChapter 10 Chem Exam 342 termsChem.100 - Ch.1081 termsChemistry chapter 11 and 9FeaturesQuizlet LiveQuizlet LearnDiagramsFlashcardsMobileGCSEsHelpSign upHelp CenterHonor CodeCommunity GuidelinesStudentsTeachersAboutCompanyPressJobsAdvertisePrivacyTermsFollow usLanguageDeutschEnglish (UK)English (USA)EspañolFrançais (FR)Français (QC/CA)Bahasa IndonesiaItalianoNederlandspolskiPortuguês (BR)РусскийTürkçeTiếng Việt한국어中文 (简体)中文 (繁體)日本語© 2019 Quizlet Inc.. A neutron in the nucleus of thorium-234 undergoes beta minus decay and changes into a proton with the subsequent release of an electron, an antineutrino and some energy.. A neutron in the nucleus of thorium-234 undergoes beta minus decay and changes into a proton with the subsequent release of an electron, an antineutrino and some energy..