Concept explainers
(a)
Interpretation:
The
Concept Introduction: Nuclear Stability is a concept that helps to identify the stability of an isotope and thus the type of nuclear reaction a nucleus undergo, can be determined. The two main factors that determine nuclear stability are the neutron/proton ratio and the total number of nucleons in the nucleus.
When a nucleus undergoes alpha -decay
(b)
Interpretation:
The electrical power output in watts for an RTG having 7.8 kg of 238PuO2 should be calculated if the energy output from the decay of 238Pu is 0.54 kW and the conversion of heat to electrical energy is 6.5% efficient should be calculated.
Concept Introduction:
Nuclear Stability is a concept that helps to identify the stability of an isotope and thus the type of nuclear reaction a nucleus undergo, can be determined. The two main factors that determine nuclear stability are the neutron/proton ratio and the total number of nucleons in the nucleus.
Masses of species are always in the same ratio as the molar masses. Unitary method can be used to calculate the electrical power output
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Chemistry for Engineering Students
- Fluorine-18 is a radioactive isotope that decays by positron emission to form oxygen-18 with a half-life of 109.7 min. (A positron is a particle with the mass of an electron and a single unit of positive charge; the equation is F918O188+e+10 Physicians use 18F to study the brain by injecting a quantity of ?uoro-substituted glucose into the blood of a patient. The glucose accumulates in the regions where the brain is active and needs nourishment. (a) What is the rate constant for [lie decomposition of ?uorine-18? (b) If a sample of glucose containing radioactive fluorine-18 is injected into the blood, what percent of the radioactivity will remain after 5.59 h? (c) How long does it take for 99.99% of the 18F to decay?arrow_forwardThe isotope S3890r one of the extremely hazardous species in the residues from nuclear power generation. The strontium in a 0.500-g sample diminishes to 0.393 g in 10.0 y. Calculate the half-life.arrow_forward
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