The Stability Of $^{11} _{6}C$ With Respect to Alpha, Beta-Plus and Beta-Minus Decay Is to Beta-Plus

question 29

Multiple Choice

The stability of $^{11} _{6}C$ with respect to alpha, beta-plus and beta-minus decay is to be determined. The following atomic masses are known: $^{4}_{2}$ He: 4.002603 u $^{7}_{4}$ Be: 7.016928 u $^{11} _{5}$ B: 11.009305 u $^{11} _{6}$ C: 11.011433 u $^{11} _{7}$ N: 11.026742 u The $^{11} _{6}$ C nucleus is

• A) not subject to alpha, beta-plus or beta-minus decay.
• B) subject to alpha decay only.
• C) subject to beta-plus decay only.
• D) subject to beta-minus decay only.
• E) subject to beta-plus or beta-minus decay, but not to alpha decay.

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