Based on the descriptions in Column A, the matching with Column B is as follows:
- Forms two lighter nucleus: b. Fission
- Forms one heavier nucleus: a. Fusion
- cb794d20-2b7f-4bf4-a043-964706757c9a: (This entry seems to be incomplete and would require more context for accurate matching)
- 808ecb1f-d7df-46f5-9d92-076db0dd74a0: (This entry seems to be incomplete and would require more context for accurate matching)
- Has been successfully used to generate energy: b. Fission (used in nuclear power plants)
- Has NOT been successfully used to generate energy/electricity: a. Fusion (not yet commercially viable)
Please provide the specific descriptions for entries 3 and 4 if further matching is needed.