Across
- 3. Radioactive element used in nuclear power
- 4. Subatomic particles in the nucleus, with a positive charge.
- 8. Time it takes for half of a radioactive substance to decay
- 12. Subatomic particles with a negative charge.
- 13. Subatomic particles in the nucleus, with no charge
- 15. Atoms of the same element with different neutron numbers.
Down
- 1. Having the property of emitting radiation
- 2. Splitting of an atomic nucleus into smaller parts
- 5. A sequence of reactions where the product of one reaction causes the next
- 6. Radioactive element used in nuclear weapons
- 7. Fundamental particle of matter
- 9. Combining of atomic nuclei.
- 10. The process where an unstable atomic nucleus loses energy
- 11. Process where atoms interact and change
- 14. Capacity to do work.