Respuesta :

1=H, 2=B, 3=F, 4=A,5=C,6=E, 7=D, 8=G
9: 69Ga=60.12% and 71Ga=39.88%; total=69.797amu
10: 27  27.977  92.23; 28  28.976  4.67; 29  29.974  3.10; abundance =28.07 Silicon

I hope this helps!