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