| All helium isotopes have ____ protons. |
2 |
| Nuclei ____ during nuclear fusion reactions. |
6 |
| C-14 is a natural isotope used for ____ dating. |
8 |
| All carbon isotopes (e.g. C-12 and C-14) have ____ protons. |
beta |
| A ____ particle is a high-speed electron emitted by nuclei. |
gamma |
| Carbon-14 has 6 protons and ____ neutrons. |
heavier |
| A ____ ray is a photon emitted by a radioactive substance. |
join together |
| Tritium (two neutrons) is ____ than deuterium (one neutron). |
radiocarbon |
