RAD 102 - Radiation Science Exam 1 questions and answers 2024
University of Nevada, Las Vegas
what is the same as 9.78 x 10^5? - --978,000
what is the correct way to write 0.000832 in scientific notation? - --8.32 x 10^-4
a chocolatier has ordered 1 Mg (megagram) of Belgian chocolate. How many pounds (US) will
he receive? - --2200 lb
in 2012, Viking'r running back Adrian Peterson was 8 yards short of the rushing record. To
beat the record next year, how many more cm would he have to run? - --732 cm
according to Bohr's model of the atom, which of the following particles can be found inside
the nucleus of the atom? - --protons
what element is this isotope?
A: 137, Z:?, X: ?, N: 82 - --Cesium (Cs)
how many neutrons are in a Co-60 nucleus? - --33
a +1 ion of Calcium-48 was used to produce element 115 (recently confirmed in Sweden).
How many electrons does this ion have? - --19
which of the following sets of nuclei are isobars?
a. C-11, C-12, C-13
, b. C-13, N-14, O-15
c. He-4, Ne-10, Ar-18
d. Fe-60, Co-60, Ni-60 - --Fe-60, Co-60, Ni-60
what are isomers? - --nuclei with the same number of protons and neutrons, but different
energy levels
radioactive decay is the _ transformation of one nucleus into another through the emission of
one or more particle and energy. - --spontaneous
looking at the chart of nucleides, the line of stability curves downward as you go from low to
high z. why? - --more neutrons are needed in the nucleus to overcome the coulomb repulsion
as the number of protons increases
naturally-occuring radionuclides can be best classified as? - --primordial and cosmogenic
which of the following are always conserved in a nuclear reaction? - --energy and momentum
which of the following does not define activity?
a. decays per second
b. spontaneous transformation of an isotope to a more stable isotope
c. number of particles emitted per unit time
d. the quantity of an isotope that emits that many particles per second - --b. spontaneous
transformation of an isotope to a more stable isotope
which of the following does not describe the Q value of a reaction?
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