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Determine the identity of the daughter nuclide from the electron capture by Determine the identity of the daughter nuclide from the electron capture by Pa. A) Th B) Np C) Ac D) U E) ThPa.


A) Determine the identity of the daughter nuclide from the electron capture by Pa. A) Th B) Np C) Ac D) U E) ThTh
B) Determine the identity of the daughter nuclide from the electron capture by Pa. A) Th B) Np C) Ac D) U E) ThNp
C) Determine the identity of the daughter nuclide from the electron capture by Pa. A) Th B) Np C) Ac D) U E) ThAc
D) Determine the identity of the daughter nuclide from the electron capture by Pa. A) Th B) Np C) Ac D) U E) ThU
E) Determine the identity of the daughter nuclide from the electron capture by Pa. A) Th B) Np C) Ac D) U E) ThTh

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If we start with 1.000 g of cobalt-60,0.675 g will remain after 3.00 yr.This means that the half-life of cobalt-60 is ________ yr.


A) 3.08
B) 4.44
C) 2.03
D) 5.30
E) 7.65

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The following reaction represents what nuclear process? The following reaction represents what nuclear process? H + H → He + N A) nuclear fusion B) alpha emission C) beta emission D) nuclear fission E) neutron captureH +The following reaction represents what nuclear process? H + H → He + N A) nuclear fusion B) alpha emission C) beta emission D) nuclear fission E) neutron captureH →The following reaction represents what nuclear process? H + H → He + N A) nuclear fusion B) alpha emission C) beta emission D) nuclear fission E) neutron captureHe +The following reaction represents what nuclear process? H + H → He + N A) nuclear fusion B) alpha emission C) beta emission D) nuclear fission E) neutron captureN


A) nuclear fusion
B) alpha emission
C) beta emission
D) nuclear fission
E) neutron capture

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Calculate the mass defect in Fe-56 if the mass of an Fe-56 nucleus is 55.921 amu.The mass of a proton is 1.00728 amu and the mass of a neutron is 1.008665 amu.


A) 0.528 amu
B) 3.507 amu
C) 0.564 amu
D) 1.056 amu
E) 0.079 amu

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If we start with 1.000 g of strontium-90,0.908 g will remain after 4.00 yr.This means that the half-life of strontium-90 is ________ yr.


A) 3.05
B) 4.40
C) 28.8
D) 3.63
E) 41.6

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Which of the following elements would be expected to be particularly stable?


A) Which of the following elements would be expected to be particularly stable? A) C B) B C) Be D) LiC
B) Which of the following elements would be expected to be particularly stable? A) C B) B C) Be D) LiB
C) Which of the following elements would be expected to be particularly stable? A) C B) B C) Be D) LiBe
D) Which of the following elements would be expected to be particularly stable? A) C B) B C) Be D) LiLi

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Identify the element that is not used as a radioactive tracer.


A) iron-59
B) phosphorus-32
C) thallium-201
D) iodine-131
E) carbon-13

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Which nuclide below is most likely to decay by electron capture?


A) Which nuclide below is most likely to decay by electron capture? A) Re B) Re C) Re D) ReRe
B) Which nuclide below is most likely to decay by electron capture? A) Re B) Re C) Re D) ReRe
C) Which nuclide below is most likely to decay by electron capture? A) Re B) Re C) Re D) ReRe
D) Which nuclide below is most likely to decay by electron capture? A) Re B) Re C) Re D) ReRe

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Match the following. -beta particle


A) Match the following. -beta particle A) γ B) p C) n D) e E) He F) e γ
B) Match the following. -beta particle A) γ B) p C) n D) e E) He F) e p
C) Match the following. -beta particle A) γ B) p C) n D) e E) He F) e n
D) Match the following. -beta particle A) γ B) p C) n D) e E) He F) e e
E) Match the following. -beta particle A) γ B) p C) n D) e E) He F) e He
F) Match the following. -beta particle A) γ B) p C) n D) e E) He F) e e

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Write a nuclear equation to describe the neutron induced fission of U-235 to form Xe-134 and Sr-100.Determine how many neutrons are produced in the reaction.


A) 4
B) 3
C) 1
D) 0
E) 2

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Identify the symptom that is not from radiation exposure.


A) measles
B) increased cancer risk
C) death
D) genetic effects
E) weaker immune systems

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A geological sample is found to have a Pb-206/U-238 mass ratio of 0.337/1.00.Assuming there was no Pb-206 present when the sample was formed,how old is it? The half-life of U-238 is 4.5 × 109 years.


A) 7.3 × 1011 years
B) 1.4 × 1010 years
C) 2.4 × 1010 years
D) 2.1 × 109 years
E) 7.1 × 109 years

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Carbon-11 is used in medical imaging.The half-life of this radioisotope is 20.4 min.What percentage of a sample remains after 60.0 min?


A) 71.2
B) 5.28
C) 13.0
D) 34.0
E) 2.94

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Which particle has the highest penetrating power?


A) alpha particle
B) beta particle
C) gamma particle
D) positron emission
E) electron capture

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The following reaction represents what nuclear process? The following reaction represents what nuclear process? Am → He + Np A) beta emission B) neutron bombardment C) alpha emission D) electron capture E) positron emissionAm →The following reaction represents what nuclear process? Am → He + Np A) beta emission B) neutron bombardment C) alpha emission D) electron capture E) positron emissionHe +The following reaction represents what nuclear process? Am → He + Np A) beta emission B) neutron bombardment C) alpha emission D) electron capture E) positron emissionNp


A) beta emission
B) neutron bombardment
C) alpha emission
D) electron capture
E) positron emission

Correct Answer

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Determine the identity of the daughter nuclide from the beta decay of Determine the identity of the daughter nuclide from the beta decay of Tc. A) Ru B) Rh C) Nb D) Mo E) RuTc.


A) Determine the identity of the daughter nuclide from the beta decay of Tc. A) Ru B) Rh C) Nb D) Mo E) RuRu
B) Determine the identity of the daughter nuclide from the beta decay of Tc. A) Ru B) Rh C) Nb D) Mo E) RuRh
C) Determine the identity of the daughter nuclide from the beta decay of Tc. A) Ru B) Rh C) Nb D) Mo E) RuNb
D) Determine the identity of the daughter nuclide from the beta decay of Tc. A) Ru B) Rh C) Nb D) Mo E) RuMo
E) Determine the identity of the daughter nuclide from the beta decay of Tc. A) Ru B) Rh C) Nb D) Mo E) RuRu

Correct Answer

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Determine the identity of the daughter nuclide from the positron emission of Determine the identity of the daughter nuclide from the positron emission of C. A) B B) N C) C D) B E) NC.


A) Determine the identity of the daughter nuclide from the positron emission of C. A) B B) N C) C D) B E) NB
B) Determine the identity of the daughter nuclide from the positron emission of C. A) B B) N C) C D) B E) NN
C) Determine the identity of the daughter nuclide from the positron emission of C. A) B B) N C) C D) B E) NC
D) Determine the identity of the daughter nuclide from the positron emission of C. A) B B) N C) C D) B E) NB
E) Determine the identity of the daughter nuclide from the positron emission of C. A) B B) N C) C D) B E) NN

Correct Answer

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Stable isotopes,with low atomic numbers,have a N/Z ratio of 1.What does that imply?


A) The number of neutrons equals the number of protons.
B) The number of neutrons equals the number of electrons plus protons.
C) The number of protons equals the number of electrons.
D) The atomic number equals the atomic mass.
E) The number of protons equals the number of electrons plus neutrons.

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Identify the elements used in radiometric dating.


A) Carbon-14 to nitrogen-14.
B) Uranium-238 to lead-206.
C) Potassium-40 to argon-40.
D) None of the above.
E) All of the above.

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Neptunium-239 has a half-life of 2.35 days.How many days must elapse for a sample of 239Np to decay to 0.100% of its original quantity?


A) 0.0427 days
B) 1.491 days
C) 2.04 days
D) 23.4 days

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