In each of the following radioactive decay processes, supply the missing particle. a. \(^{73} \mathrm{Ga} \rightarrow^{73} \mathrm{Ge}+?\) b. \(^{192} \mathrm{Pt} \rightarrow^{188} \mathrm{Os}+?\) c. \(^{205} \mathrm{Bi} \rightarrow^{205} \mathrm{Pb}+?\) d. \(^{241} \mathrm{Cm}+? \rightarrow^{241} \mathrm{Am}\)

Short Answer

Expert verified
a. In the decay process from \(_{31}^{73}\textrm{Ga}\) to \(_{32}^{73}\textrm{Ge}\), the missing particle is an electron (e-) or β- particle. b. In the decay process from \(_{78}^{192}\textrm{Pt}\) to \(_{76}^{188}\textrm{Os}\), the missing particle is an alpha particle or a Helium-4 nucleus (\(^{4}\textrm{He}\)). c. In the decay process from \(_{83}^{205}\textrm{Bi}\) to \(_{82}^{205}\textrm{Pb}\), the missing particle is either a positron (e+) for β+ decay or an electron (e-) for electron capture. d. In the decay process from \(_{96}^{241}\textrm{Cm}\) to \(_{95}^{241}\textrm{Am}\), the missing particle is a neutron (\(^{1}\textrm{n}\)).

Step by step solution

01

Identify the atomic numbers and mass numbers of the elements

We'll first look at the atomic numbers (Z) and mass numbers (A) for each pair of elements. a. Ga (Z = 31, A = 73) and Ge (Z = 32, A = 73) b. Pt (Z = 78, A = 192) and Os (Z = 76, A = 188) c. Bi (Z = 83, A = 205) and Pb (Z = 82, A = 205) d. Cm (Z = 96, A = 241) and Am (Z = 95, A = 241)
02

Examine the decay process and determine the change in atomic number and mass number

Look at the decay process of each and determine the changes in the atomic numbers (ΔZ) and the mass numbers (ΔA). a. Ga to Ge: ΔZ = 1, ΔA = 0 b. Pt to Os: ΔZ = -2, ΔA = -4 c. Bi to Pb: ΔZ = -1, ΔA = 0 d. Cm to Am: ΔZ = -1, ΔA = 0
03

Identify the decay process and find the missing particle

Identify the decay process based on the changes in atomic numbers and mass numbers, and find the missing particle that fulfills these changes. a. Ga to Ge: Since ΔZ = 1 and ΔA = 0, this indicates β- decay. The missing particle is an electron (e-) or β- particle. b. Pt to Os: Since ΔZ = -2 and ΔA = -4, this indicates α decay. The missing particle is an alpha particle, or a Helium-4 nucleus (\(^{4}\textrm{He}\)). c. Bi to Pb: Since ΔZ = -1 and ΔA = 0, this indicates β+ decay or electron capture (EC). The missing particle is a positron (e+) for β+ decay or an electron (e-) for electron capture. d. Cm to Am: Since ΔZ = -1 and ΔA = 0, this indicates neutron capture. The missing particle is a neutron (\(^{1}\textrm{n}\)).

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