| A ____ counter is used to detect ionizing radiation. |
2 |
| All helium isotopes have ____ protons. |
6 |
| Tritium (two neutrons) is ____ than deuterium (one neutron). |
8 |
| A ____ particle is a high-speed electron emitted by nuclei. |
archaeological |
| Carbon-14 is used to date organic ____ samples. |
beta |
| All carbon isotopes (e.g. C-12 and C-14) have ____ protons. |
gamma |
| A ____ ray is a photon emitted by a radioactive substance. |
Geiger |
| Carbon-14 has 6 protons and ____ neutrons. |
heavier |
