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The Nucleus of Atom Quiz #2
Prispevano od: Collins
  • 1. Are most atomic nuclei stable or unstable
A) Their split evenly between stable and unstable
B) It is not known at this time
C) Stable
D) Unstable
  • 2. If an atom is radioactive it will:
A) Break into a lower atomic numbered atom
B) Two of the answers are correct
C) Become a higher atomic massed atom.
D) At some point give off radiation.
  • 3. The "strong force" in the nucleus of the atom:
A) Hold the neutrons together in the nucleus of an atom.
B) Prevents the positive charges of the protons from tearing the nucleus apart.
C) Prevents the electrons from flying off into space around the nucleus.
D) Prevents the protons from repelling the neutrons out of the nucleus.
  • 4. In the decay of radioactive isotopes, half-life is the measure of:
A) How long half of the material takes to decay.
B) Half of the time it takes all the material to decay.
C) How much of the material will decay in half a century.
D) How much of half of the material will decay in half the time.
  • 5. What type of radiation emits an electron and a neutrino during decay?
A) Beta
B) Gamma
C) Delta
D) Alpha
  • 6. What type of radioactive decay emits a photon during decay?
A) Beta
B) Gamma
C) Alpha
D) Delta
  • 7. What type of radioactive decay emits 2 protons and 2 neutrons during decay?
A) Beta
B) Gamma
C) Delta
D) Alpha
  • 8. What type of decay(s) helps to take unstable isotopes and change them into stable isotopes
A) Alpha
B) Alpha and Gamma
C) Alpha and Beta
D) Alpha, Beta and Gamma
  • 9. Which statement is false about radiation?
A) Radiation can cause ionization of the cell's molecules.
B) Radiation has no known benefit to humans.
C) Many of the pioneers of nuclear physics died of prolonged exposure to radiation.
D) All three types of radiation emit high energy particles which damage the molecules of the cells.
  • 10. The "weak force":
A) Hold the neutrons together in the nucleus of an atom.
B) Prevents the positive charges of the protons from tearing the nucleus apart.
C) Prevents the protons from repelling the neutrons out of the nucleus.
D) Prevents the electrons from flying off into space around the nucleus.
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