Across
- 2. Centre of atom
- 4. Radioactive what
- 7. table of elements
- 8. splitting the atom
- 9. Made the hulk
- 10. Atoms coming together
- 11. Radiation but worse
- 12. orbit atoms
Down
- 1. Centre of atom but neutral
- 3. centre of atom but positive
- 5. First type of radiation
- 6. Unstable form of element