Question

Hi! im struggling to answer these please help!

1. Write a nuclear equation for the alpha decay of 231-91Pa.


2. Write a nuclear equation for the alpha decay of 146-62Sm


3. Write a nuclear equation for the alpha decay of 149-62Sm.


4. Write a nuclear equation for the alpha decay of 150-64Gd.


5. Write a nuclear equation for the alpha decay of 249-101Md.

Answer 1

This was the best I can do.

1. 231-91Pa -> 227-89Ac + 4-2He
2. 146-62Sm -> 142-60Nd + 4-2He
3. 149-62Sm -> 145-60Nd + 4-2He
4. 150-64Gd -> 146-62Sm + 4-2He
5. 249-101Md -> 245-99Bk + 4-2He