Problem 1:
Determine the unknown term in the following decay:
a)241^Pu --> ?+ 4^He
b) 201^Pb —> ?+(+1⬇️°e) +v
c)44^Ti—> 44^Sc+?
d) 64^Ni+? → 65^Ni → ? +(-1⬇️°e)+ v
