Q.1
Which type of radiation has the greatest penetrating power?
  • Alpha
  • Beta
  • Gamma
  • Microwaves
Q.2
The nuclear process occurring at a nuclear power plant.
  • Nuclear fusion
  • Nuclear fission
  • Combustion
  • Multiplication
Q.3
What is the missing isotope that will balance the following nuclear equation?94Be + → _____ + 42He
  • 105B
  • 105Ne
  • 63Li
  • 63C
Q.4
If we start off with element 24Xafter an alpha decay we get another element Y that looks like
  • 22Y50
  • 22Y46
  • 20Y48
  • 26Y54
Q.5
Carbon-has 98.abundance, carbon-has 1.abundance, and carbon-has 0.abundance. Which isotope contributes most to the average atomic mass?
  • Carbon-12
  • Carbon-13
  • Carbon-14
  • They all contribute equally
Q.6
If Thorium-undergoes a beta decay, What element will be left in its place?
  • Actinium-234
  • Thorium-233
  • Protactinium-234
  • Radium-230
Q.7
What is NOT a characteristic of an alpha particle?
  • A negatively charged electron
  • Stopped by paper
  • A positively charged particle
  • Low penetration
Q.8
What does it mean when an element is radioactive?
  • atom emits radiation
  • nucei unstable due to uneven p to n ratio
  • nuclei changes to become stable
  • all of the above
Q.9
Which produces more energy--nuclear fission or nuclear fusion?
  • Fusion
  • Fission
  • They produce the same amount
  • It depends on the elements used
Q.10
What is the half-life of an isotope if after 20.0 days you have 4.0 grams remaining of a 64.0 grams sample?
  • 1.25 days
  • 5.0 days
  • 0.000305 days
  • 4.25 days
Q.11
The force that holds the protons and neutrons together in the nucleus of an atom is called __________.
  • Binding force
  • magnetic force
  • centripetal force
  • electrostatic force
Q.12
The half-life of a radioactive isotope is 20.0 minutes. What is the total amount of a 1.00-gram sample of this isotope remaining after 1.hour?
  • 0.500g
  • 0.333g
  • 0.250g
  • 0.125g
Q.13
During fission, some of the nuclear mass is converted into
  • energy
  • heavier nuclei
  • critical mass
  • protons
Q.14
Arrange in order of increasing ability to penetrate matter.
  • Beta, gamma, alpha
  • Alpha, gamma, beta
  • Gamma, beta, alpha
  • Alpha, beta, gamma
Q.15
What kind of a nuclear reaction changes the number of protons in the nucleus?
  • transmutation
  • radioactive decay
  • fusion and fission
  • All of them listed in the other answer choices
Q.16
Which of the following is a fusion reaction?
  • hydrogen-2 and hydrogen-3 combining to form a helium-4 atom and a neutron
  • Carbon-14 emitting an alpha particle
  • uranium-235 absorbing a neutron and breaking into barium-141, krypton-92, and three neutrons
  • uranium-238 emitting a beta particle
Q.17
In fission neutron is often used to start the reaction and it is also a product of the reaction. This is called a ____
  • neutron emission
  • nuclear fusion
  • domino effect
  • chain reaction
Q.18
Detects radiation by counting electric pulses carried by gas atoms ionized by radiation
  • Geiger-Muller counter
  • Scintillation counter
  • Film badge
  • Radioactive detective
Q.19
In the symbolwhat the 7 stand for?
  • Mass number
  • Atomic number
  • Atomic mass
  • Number of neutrons
Q.20
What is the equation for the positron emission by oxygen-16?
  • 168O + 0+1e --> 169F
  • 168O --> 42He + 126C
  • 168O --> 0-1e + 169F
  • 168O --> 0+1e + 167N
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