____33. When an atom undergoes gamma decay, the atomic number of the element
a. remains the same.
b. decreases by one.
c. increases by one.
d. increases by two.
____34. Radioactive materials change into new _______________ during radioactive decay.
a. compounds
b. atoms of the same material
c. elements
d. neutrons
____35. Nuclear fission is the:
a. Production of uranium.
b. Splitting of protons by bombarding them with neutrons.
c. Splitting of atoms by bombarding them with neutrons.
d. Result of neutrons smashing into each other.
____36. During fission:
a. Electrons are released and cause more fission.
b. Protons are released and cause more fission.
c. Uranium is produced.
d. Neutrons are released and cause more fission.
____37. Separating U-235 from U-238 was difficult because:
a. There was so much more U-235 than U-238
b. There was so much more U-238 than U-235.
c. A chain reaction would result.
d. They are chemically identical.
Part IV: True/False
____ 38. The mass of the nucleus is small compared to the mass of the atom.
____ 39. Alpha particles would be harder to turn than Beta particles.
____ 40. Positive charge was spread all throughout the atom in the Rutherford Model.
____ 41. The Manhattan Project was located in New York for most of its duration.
____ 42. The cathode rays produced by Thomson were identical for all filaments.
____ 43. It is possible to know where an electron is and what path it is on.
____ 44. X-rays are produced when fast moving electrons strike phosphor coatings.