A nucleus with \( Z=92 \) emits the following in a sequence: \[ \alpha, \beta^{-}, \beta^{-}, \a....
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A nucleus with \( Z=92 \) emits the following in a
\( \mathrm{P} \)
sequence:
W
\[
\alpha, \beta^{-}, \beta^{-}, \alpha, \alpha, \alpha, \alpha, \alpha, \beta^{-}, \beta^{-}, \alpha, \beta^{+}, \beta^{+}, \alpha
\]
Then \( \mathrm{Z} \) of the resulting nucleus is
(1) 76
(2) 78
(3) 82
(4) 74
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