Which of the Following Reactions Is an Example of Beta ${ }_{42}^{99} \mathrm{Mo} \rightarrow{ }_{43}^{99} \mathrm{Tc}+{ }_{-1}^{0} e$

question 34

Multiple Choice

Which of the following reactions is an example of beta particle emission?

• A) \({ }_{42}^{99} \mathrm{Mo} \rightarrow{ }_{43}^{99} \mathrm{Tc}+{ }_{-1}^{0} e\)
• B) \({ }_{19}^{40} \mathrm{~K}+{ }_{-1}^{0} e \rightarrow{ }_{18}^{40} \mathrm{Ar}\)
• C) \({ }_{19}^{40} \mathrm{~K} \rightarrow{ }_{18}^{40} \mathrm{Ar}+{ }_{1}^{0} e\)
• D) \({ }_{92}^{238} \mathrm{U} \rightarrow{ }_{90}^{234} \mathrm{Th}+{ }_{2}^{4} \mathrm{He}\)
• E) \({ }_{90}^{232} \mathrm{Th} \rightarrow{ }_{88}^{228} \mathrm{Ra}+{ }_{2}^{4} \mathrm{He}\)

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Definitions:

Unconditioned Responses

Natural, automatic reactions to a stimulus that occur without prior learning or conditioning.

Observational Learning

Learning by observing others.

Spontaneous Recovery

The reappearance, after a pause, of an extinguished conditioned response.

Respondent Behavior

Behavior that occurs as an automatic response to some stimulus.