PS Ch 10 Nuclear Changes: Question Preview (ID: 5784)


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whether or not a person develops radiation sickness depends on the ___ of the exposure to radiation
a) amount b) temperature c) time of day d) all of the answers are correct
radioactive materials have unstable
a) electrons b) nuclei c) protons d) neutrons
the process of nuclear change in an atom of radioactive material is called
a) radioactive decay b) isotopes c) nuclear mass d) radon
in alpha decay, the mass of the atom before the decay
a) equals the sum of the mass numbers of the products b) does not change after the decay c) is the same as the atomic number d) cannot be determined
when a nucleus undergoes nuclear decay by gamma rays, the atomic number of the element
a) remains the same b) decreases by one c) increases by one d) increases by two
the attractive force between protons and neutrons in a nucleus caused by the strong nuclear force acts only
a) outside the nucleus b) over a very short distance c) in unstable isotopes d) intermittently
nuclei with too many or two few neutrons are
a) never found b) unstable c) unnatural d) stable
fusion occurs when nuclei
a) split b) combine c) mutate d) gain energy
a fission chain reaction can be slowed by using material that will
a) absorb neutrons b) convert neutrons to protons c) increase the rate of neutron multiplication d) decrease the amount of oxygen
background radiation can come from
a) the sun b) plants c) water d) all of the answers are correct
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