If two electrons in the same atom have the same four quantum numbers, then they must have the same energy
A) True
B) False
C) They cannot both have the same four quantum numbers.
C
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What do we mean by the half-life of a radioactive isotope?
A) it is the amount of time a person can be exposed to radiation without getting sick B) it is the time for half the number of radioactive nuclei to become stable nuclei C) it is the amount of time for half of the nuclei to become radioactive D) it is the time for half the number of radioactive nuclei to decay
A neutron bouncing off a heavy nucleus loses speed. If it instead bounces off a light nucleus it loses
A) less speed. B) more speed. C) the same amount of speed.
The process 
shown is
A. an isochoric process. B. an isothermal process. C. an isobaric process. D. an adiabatic process. E. an isometric process. F. none of the above.
Why is there a tidal bulge on the opposite side of Earth from the Moon?
A. The Sun creates a tidal bulge as well as the Moon. B. Centrifugal force makes the far side of Earth push outward. C. The far side of Earth receives a weaker pull from the Moon, and accelerates less than the near side. D. The gravitational force from the Moon is stronger on the near side, but the pull of Earth on the water is stronger on the far side.