Nuclear Chemistry Practice Test
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  • Question 1
    30 seconds
    Q. What type of decay changes the atomic number of the atom?
    answer choices
    Transmutation
    Translation
    Translocation
    Transuranium
  • Question 2
    30 seconds
    Q. Which of the following best describes the process of nuclear fission? 
    answer choices
    Splitting an atom's nucleus apart 
    Separating an atom's electrons from its nucleus 
    Fusing two atomic nuclei together 
    Splitting an atom's electrons in half 
  • Question 3
    30 seconds
    Q. Which of the following is an example of nuclear fusion? 
    answer choices
    A plutonium atom is used to start a chain reaction that detonates a nuclear weapon 
    A uranium atom is split apart into lighter elements
     Two hydrogen atoms are combined to form a helium atom
    Two hydrogen atoms bond with an oxygen atom to form a water molecule 
  • Question 4
    30 seconds
    Q. Positively charged particles that consist of two protons and two neutrons are called
    answer choices
    alpha particles
    beta particles
    gamma rays
    neutron emissions
  • Question 5
    30 seconds
    Q. An electron that is emitted during radioactive decay is a
    answer choices
    neutron
    gamma ray
    alpha particle
    beta particle
  • Question 6
    30 seconds
    Q. The least penetrating type of radiation
    answer choices
    Alpha particle
    Beta particle
    gamma ray
  • Question 7
    30 seconds
    Q. This type of reaction occurs on the sun and in stars.
    answer choices
    Fission
    Fusion
    synthesis
    decomposition
  • Question 8
    30 seconds
    Q. A form of radiation that carries energy and has no mass and no charge.
    answer choices
    Alpha particles
    Beta Particles
    Gamma Rays
    Daughter nucleus
  • Question 9
    30 seconds
    Q. Which type of nuclear radiation is being emitted here?
    answer choices
    alpha
    beta
    gamma
    none
  • Question 10
    30 seconds
    Q. What element is the ?
    answer choices
    Ag-115
    Cd-115
    Pd-115
    Not Listed
  • Question 11
    30 seconds
    Q. What type of decay does not change the element or the mass?
    answer choices
    Alpha
    Beta
    Gamma
  • Question 12
    60 seconds
    Q. Which type of nuclear radiation is being emitted here?
    answer choices
    Alpha
    beta
    gamma 
    none
  • Question 13
    60 seconds
    Q. What is meant by the statement that 15P32 has a half life of 14 days
    answer choices
    It takes 7 days to go down to 50% radioactivity each time
    It takes 14 days to go down to 50% radioactivity each time
    After 14 days it starts to become less radioactive
    It takes 14 days to go up by 50% radioactivity each time
  • Question 14
    30 seconds
    Q. The type of radioactive particle will penetrate farthest into a material is a(n)__________.
    answer choices
    alpha
    beta
    gamma
    all of the above
  • Question 15
    120 seconds
    Q. How many neutrons does uranium-239 have
    answer choices
    92
    147
    239
    331
  • Question 16
    120 seconds
    Q. What is Half-life?
    answer choices
    The amount of time it takes for some of the nuclei in a sample of the isotope to decay
    The amount of time it takes for half the electrons in a sample of the isotope to decay
    The amount of time it takes for half the nuclei in a sample of the isotope to decay
    the amount of time it takes to double the nuclei in a sample of the isotope to decay
  • Question 17
    900 seconds
    Q. The half-life of Zn-71 is 2.4 minutes. If one had 100.0 g at the beginning, how many grams would be left after 7.2 minutes has elapsed?
    answer choices
    100.0g
    50.0g
    12.5g
    8.5g
  • Question 18
    900 seconds
    Q. Barium-122 has a half-life of 2 minutes. A fresh sample weighing 80 g was obtained. If it takes 10 minutes to set up an experiment using barium-122, how much barium-122 will be left when the experiment begins?
    answer choices
    0.25g
    2.5g
    25g
    80g
  • Question 19
    120 seconds
    Q. What is the symbol for an alpha particle?
    answer choices
    42He
    0-1e
    0+1 e
    10n
  • Question 20
    120 seconds
    Q. In a nuclear reactor what slows down neutrons?
    answer choices
    Control Rods
    Moderator
    Sheilding
    The brakes
  • Question 21
    120 seconds
    Q. In a nuclear reactor what absorbs fast moving neutrons?
    answer choices
    generator
    moderator
    control rods
    sheilding
  • Question 22
    120 seconds
    Q. In fission neutron is often used to start the reaction and it is also a product of the reaction. This is called a ____
    answer choices
    neutron emission
    nuclear fusion
    domino effect
    chain reaction
  • Question 23
    30 seconds
    Q. What turns the turbines in a nuclear power plant?
    answer choices
    uranium
    plutonium
    heat
    steam
  • Question 24
    30 seconds
    Q. What type of nuclear decay emits a positive electron from the nucleus of an atom?
    answer choices
    beta decay
    gamma decay
    alpha decay
    positron emission
  • Question 25
    30 seconds
    Q. Which of the following is NOT a use for radiation?
    answer choices
    PET scan
    Carbon Dating
    Smoke Detectors
    All are uses for radiation
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