Across
- 1. smaller nuclei are forcibly combined
- 3. The nucleus that was formed during a radioactive decay
- 6. Number of nucleons (total # of protons and electrons)
- 9. same proton number different neutron number
- 10. isotopes that have the same number of neutrons
- 11. measures masses/relative abundances of atoms/molecules
- 12. Degeneration
Down
- 2. isotopes that have the same mass
- 4. the time taken for half of the atoms (or half of the mass) in a substance to decay
- 5. emits radiation from the nucleus,its unstable
- 7. nuclei are split into smaller nuclei (by neutrons)
- 8. another name for (Z) element number / proton number