Solution Found!
Write balanced equations to represent decay reactions of the following isotopes. The decay process or daughter isotope is given in parentheses. a. \({ }_{63}^{157} \mathrm{Eu}\) (beta emission) b. \({ }_{78}^{190} \mathrm{Pt}\) (daughter = osmium - 186) c. \({ }_{62}^{138} \mathrm{Sm}\) (electron capture) d. \({ }_{80}^{188} \mathrm{Hg}\) (daughter = Au - 188) e. \({ }_{90}^{234} \mathrm{Th}\) (beta emission) f. \({ }_{85}^{218} \mathrm{At}\) (alpha emission)
Chapter 10, Problem 10.12(choose chapter or problem)
Write balanced equations to represent decay reactions of the following isotopes. The decay process or daughter isotope is given in parentheses.
a. \({ }_{63}^{157} \mathrm{Eu}\) (beta emission)
b. \({ }_{78}^{190} \mathrm{Pt}\) (daughter = osmium - 186)
c. \({ }_{62}^{138} \mathrm{Sm}\) (electron capture)
d. \({ }_{80}^{188} \mathrm{Hg}\) (daughter = Au - 188)
e. \({ }_{90}^{234} \mathrm{Th}\) (beta emission)
f. \({ }_{85}^{218} \mathrm{At}\) (alpha emission)
Questions & Answers
QUESTION:
Write balanced equations to represent decay reactions of the following isotopes. The decay process or daughter isotope is given in parentheses.
a. \({ }_{63}^{157} \mathrm{Eu}\) (beta emission)
b. \({ }_{78}^{190} \mathrm{Pt}\) (daughter = osmium - 186)
c. \({ }_{62}^{138} \mathrm{Sm}\) (electron capture)
d. \({ }_{80}^{188} \mathrm{Hg}\) (daughter = Au - 188)
e. \({ }_{90}^{234} \mathrm{Th}\) (beta emission)
f. \({ }_{85}^{218} \mathrm{At}\) (alpha emission)
ANSWER:Step 1 of 7
Radioactive decay represents a chemical reaction in which a radioactive isotope is converted to another species by emitting radioactive particles. The type of radioactive decay is concerned with the type of particle emitted.
Alpha emission: emission of an alpha particle (He atom) (daughter nuclei have atomic number less than parent by 2 and atomic number less by 4)
Beta emission: emission of a beta particle \(\left( {{e^ - }} \right)\) (Formation of isobar).
Electron capture: absorbance of an electron. (reduce the atomic number by 1).