The Stability of Fe with Respect to Alpha,β⁺,and β^-

question 3

Multiple Choice

The stability of Fe with respect to alpha,β⁺,and β^- decay is to be determined.Do not consider the possibility of decay by electron capture.The following atomic masses are known: He: 4.002603 u Cr: 51.944768 u Mn: 55.938907 u Fe: 55.934939 u Co: 55.939841 u The Fe nuclide is

• A) not subject to alpha, β⁺, or β^- decay.
• B) subject to alpha decay only.
• C) subject to β⁺decay only.
• D) subject to β^- decay only.
• E) subject to β⁺ or β^- decay, but not to alpha decay.

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