A nucleus of \(\rm _{94}^{242}Pb \) decays to  \(\rm _{82}^{205}Pb \) by emitting ________.

1
9 alpha and 12 beta particles
2
9 alpha and 6 beta particles
3
6 alpha and 9 beta particles
4
6 alpha and 6 beta particles
5
Question Not Attempted

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