| Nuclide |
| U 235, e.g. |
| Atomic form |
| Chemical kin |
| Element form |
| Ionium, e.g. |
| U 235 is one |
| Tritium, e.g. |
| Cyclotron item |
| Elemental form |
| Atomic element |
| Helium-3, e.g. |
| U-238, for one |
| Dating material |
| Carbon-14, e.g. |
| Carbon 12, e.g. |
| Carbon 13, e.g. |
| Deuterium, e.g. |
| Chemical cousin |
| Chemist's study |
| Protium, for one |
| Physicist's atom |
| Chemistry subject |
| Uranium 235, e.g. |
| Uranium-238, e.g. |
| Elemental variant |
| Chemical relative |
| Carbon 13, for one |
| Carbon 14, for one |
| Deuterium, for one |
| Krypton-86, for one |
| U-235 or C-14, e.g. |
| Related element form |
| Tritium, to hydrogen |
| Heavy hydrogen, e.g. |
| Uranium 235, for one |
| Carbon 13 or cobalt 60 |
| Carbon 14 or uranium 235 |
| Springfield minor leaguer |
| The Simpsons" minor leaguer |
| Particular form of an element |
| Deuterium, vis-à-vis hydrogen |
| Type of atom, maybe radioactive |
| Animated Springfield minor leaguer |
| Fictional Springfield minor leaguer |
| Member of a fictional Springfield baseball team |
| One of the variants of an element sharing an atomic number but with differing chemical properties |