Across
- 1. when two nuclei combine to form a new nucleus.
- 4. centre of atmos
- 5. Is a particle that makes up the nucleus of an atom.
- 9. Nuclear fusion is when a neutron slams in to another atom causing it to split, sending more neutrons in a chain reaction
- 10. Electrons are the particles that orbit around atoms that have a negative electric charge.
- 11. A type of radiation that was the first to be discovered.
Down
- 2. Are subatomic particles that make up the nucleus of an atom.
- 3. table of elements
- 6. Is the electromagnetic that is emitted by an unstable radioactive atom
- 7. The radiation of electrons
- 8. unstable atomic nucleus loses energy by radiation