[普化] 四提核化學
1. An unstable isotope of rhenium ,191Re,has a half-life of 9.8 minutes and is a beta producer, what is the other product of the reaction?
(a)191Os(b)191W(c)192Pt(d)190W(e)190Os
2. The nuclide 127N is unstable, what type of radioactive decay would be expect?
(A) β-(b)β+(c)σ(d)α(e)10n
3. which types of the following is true for the fission of uranium-235?
(A) the electron is captured by the nucleus which becomes unstable
(B) the products include neutrons
(C) the nuclides produced are individually heavier than the uranium nuclide
(D) the nuclides produced are more stable than the uranium nuclide
4 which types of processes are likely when the neutron-to-proton ration in a nucleus is too low?
(A)decay(B)decay(C)positron production(D)electron capture
感謝再感謝囉^^
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