Number of protons (z) Now consider positron emission. Now consider electron capture. "E -,8+R "E+e-R In which direction would a nucleus move on this chart if it In which direction would a nucleus move on this chart if it were to emit a positron? were to occur? O up to the left O up to the left up to the right O up to the right down to the left down to the left down to the right down to the right For what types of unstable nuclei (compared with those on For what types of unstable nuclei (compared with those on the island of stability) will his form of radioactivity be mos the island of stablity) will this form of radioactivity be most likely to occur? likely to occur? O those with excess neutrons O those with excess neutrons

Number of protons (z) Now consider positron emission. Now consider electron capture. "E -,8+R "E+e-R In which direction would a nucleus move on this chart if it In which direction would a nucleus move on this chart if it were to emit a positron? were to occur? O up to the left O up to the left up to the right O up to the right down to the left down to the left down to the right down to the right For what types of unstable nuclei (compared with those on For what types of unstable nuclei (compared with those on the island of stability) will his form of radioactivity be mos the island of stablity) will this form of radioactivity be most likely to occur? likely to occur? O those with excess neutrons O those with excess neutrons

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter18: The Nucleus: A Chemist's View

Section: Chapter Questions

Problem 78CWP

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Similar questions

Technetium-99 is prepared from 98Mo. Molybdenum-SS combines with a neutron to give molybdenum-99, an unstable isotope that emits a particle to yield an excited form of technetium-99, represented as 99Tc*. This excited nucleus relaxes to the ground state, represented as 99Tc, by emitting a ray. The ground state of 99Tc then emits a particle. Write the equations for each of these nuclear reactions.
If a hospital were storing radioisotopes, what is the minimum containment needed to protect against: (a) cobalt-60 (a strong emitter used for irradiation). (b) molybdenum-99 (a beta emitter used to produce technetium-99 for imaging)
Why is electron capture accompanied by the emission of an X-ray?
The following nuclei do not lie in the band of stability. How would they be expected to decay?. (a) P1528 (b) U92235 (c) C2037a (d) L39i (e) C96245m