\( { }_{13}^{27} \mathrm{Al} \) is stable isotope, \( { }_{13}^{29} \mathrm{Al} \) is expected t...

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\( { }_{13}^{27} \mathrm{Al} \) is stable isotope, \( { }_{13}^{29} \mathrm{Al} \) is expected to disintegrate by
(A) \( \alpha \)-emission
(B) \( \beta \)-emission
(C) positron emission
(D) proton emission
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