1. In "nuclear symbol notation" what information is written as a subscript to the lower left of the elemental symbol?
A. Ionic charge
B. Atomic number
C. Oxidation state
D. Mass number
2. You and a classmate are working on a chemistry presentation about the differences in chemical reactions and nuclear reactions. Which two pieces of information below would you want to be certain to include in your presentation?
A. Nuclear reactions result from exchanges between electrons of different atoms.
B. Chemical reactions result from the exchange or sharing of electrons between atoms, but no new atoms are formed.
C. Chemical reactions involve the nuclei of various atoms fusing to make atoms of different elements.
D. Nuclear reactions stem from changes to the nucleus of atoms and can result in the formation of isotopes of different elements.
3. What process is represented by this model?
A. Nuclear fission since there are two products.
B. Stellar fusion since a neutron is produced.
C.Solar fission since it involves hydrogen and helium.
D. Nuclear fusion since the daughter nuclide has a larger mass.
4. A student is working on a project about nuclear processes and this is the model the student has created. Select all that apply regarding what you find about the model.
A. Uranium-236 contains 92 protons and 144 neutrons, so it may be very unstable.
B. This model is a fully correct model of nuclear fusion.
C. Overall this would represent fission because the intended daughter nuclides are smaller than the original parent nuclide but something is a little off.
D. This model is a mostly correct representation of fission, but the mass is incorrect, maybe a neutron is missing or the isotopes formed are slightly incorrect.
E. The first step in this reaction could be described correctly as; "A low energy neutron bombards a uranium-235 nuclide."
F. This model is a fully correct model of nuclear fission.
5. Which is a possible daughter nuclide formed in this model of a beta decay reaction?
A. Nickel - 60
B. Copper - 60
C. Iron - 26
D. None of these will be formed.
6. Which of the following is not an application of nuclear processes?
A. Positron emission tomography, PET, - used to map metabolic activity in the brain with Fluorine - 18.
B. Magnetic resonance imaging, MRI - used in detecting radio frequency radiation that comes from protons responding to magnetic fields.
C. Radioactive dating using potassium - 40 forming argon - 40 to determine the possible age of volcanic rock.
D. The development of the "geiger-marsden" counter which can detect the emission of various radioactive particles from a source.
E. Each of these are possible applications of nuclear processes.