Unit 2- Nuclear (Half life, Decay, Fusion/Fission0
Quiz by Kate Downey
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40 questions
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- Q1What keeps the nucleus together?strong nuclear forcegravityattraction of electronsatomic number30s
- Q2What is the process by which materials give off energy rays called radiation called?irradiationnuclear powerradioactivityhalf life30s
- Q3If a sample of element X has a half-life of 8.0 days, how much would be left of a 40.0 g sample after 32 days?2.5 g5 g10 g30s
- Q4A unknown material started with 35.6 grams and now there is only 8.9 grams left. What is the half-life of this substance if it has been 27.2 hours?54.4 hr13. 6 hours2 hours13.630s
- Q5If an unstable nuclei breaks apart spontaneously, this changes the identify of the _____________________.moleculeatomreactioncompound30s
- Q6Which particle has the following symbol?betagammaelectron capturealpha30s
- Q7Which particle has the following symbol?betagammaneutronalpha30s
- Q8Which type of radiation is a stream of high speed electrons?alphagammadeltabeta30s
- Q9When writing a decay equation, the atomic numbers and mass numbers on both sides mustbe equalincrease on the reactant sidedecrease on the product sideincrease on the product side30s
- Q10Which type of decay is just energy?betaalphagammaelectron capture30s
- Q11If Radium-226 goes through alpha decay, what element is formed? (need periodic table)Thorium-230Radon-222Actinium-222Radon-8630s
- Q12Radioactive decay of Iodine-131 involves ___, resulting in the formation of Xenon-131. (need periodic table)electron capturebeta decayalpha decaygamma decay30s
- Q13How is the nucleus of an atom changed after gamma decay?the atomic mass and atomic number stay the samethe atomic mass stays the same, atomic number gains 1the atomic mass reduces by 4, atomic number by 2the atomic mass gains 1, atomic number remains the same30s
- Q14What is it called when an unstable nuclei loses energy until it is transformed into stable isotopes of a different element?half-lifealpha decaybeta emissionradioactive decay30s
- Q15The radioactive decay of Xenon-118 involves ___, resulting in Iodine-118 (need periodic table)gamma decaybeta decayelectron capturealpha decay30s
