Question

C) ⁹³¹90Th entre uma particula Oc
D) ¹²⁶56Ba entre uma particula B ​

Answer 1

$\Large\boxed{\begin{array}{l}\underline{\rm Radioatividade}\\\sf emiss\tilde ao\,\alpha: diminui\,4\,na\,massa\,e\,2\,no\,n^o\,at\hat omico\\\sf emiss\tilde ao\,\beta: A\,massa\,\acute e\,mantida\\\sf e\,aumenta\,1\,no\,n^o\,at\hat omico.\end{array}}$

$\Large\boxed{\begin{array}{l}\sf^{232}_{90}Th\longrightarrow\longrightarrow\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!^{^{\bf emiss\tilde ao\,\alpha}} ~~^{228}_{88}Ra+^{4}_{2}He\end{array}}$

$\Large\boxed{\begin{array}{l}\sf ^{126}_{56}Ba\longrightarrow\longrightarrow\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!\!^{\bf emiss\tilde ao\,\beta}~^{126}_{57}La+^{\,\,\,\,0}_{-1}H\end{array}}$