25.01. Nuclear Activity
Quiz by Kelly Gallagher
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17 questions
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- Q1__________ is the spontaneous emission of rays or particles from certain elements.isotopesphotosynthesischemical reactionsradioactivity30s
- Q2___________ refers to the rays and particles emitted from a radioactive source.nuclear radiationconductivityweightmass30s
- Q3Nuclear reactions begin with unstable isotopes, known as ___________________.cis-isotopesheterotopesionsradioistopes30s
- Q4Atoms of radioisotopes become ___________ stable when changes occur in their nuclei.moreless30s
- Q5Nuclear changes are always accompanied by _______________.heatlarge amounts of energypoisonlight30s
- Q6_____________ reactions are not affected by changes in temperature, pressure or catalysts.ChemicalNuclearBoth nuclear & chemical30s
- Q7_______________ of a particular radioisotope cannot be slowed down, sped up or stopped.ChemicalNuclearBoth nuclear & chemical30s
- Q8_____________ are always spontaneous.Both nuclear & chemicalChemicalNuclear30s
- Q9radioactive decay of 2 protons and 2 neutronsbeta particlesalpha particlesgamma rays30s
- Q10radioactive decay of -1 chargebeta particlegamma rayalpha particle30s
- Q11radioactive decay that has no mass and no chargegamma raybeta particlealpha particle30s
- Q12_________ is the ability of radiation to pass through somethingIonization energyConductivityIsomerismpenetrating power30s
- Q13A reaction in which an atom's atomic number is changed is called ____________.isotoperisminfusiontransmutationtransferation30s
- Q14The rate at which radioisotopes decay is called its ____________.shelf lifehalf shelllife spanhalf life30s
- Q15Splitting of the nucleus, generating a large amount of energy is _______________.fusionfashionfastionfission30s