| Answer | Crossword Clue |
|---|---|
| ENOL | Unstable chemical compound |
| meitnerium | The chemical element of atomic number 109, a very unstable element made by high-energy atomic collisions |
| seaborgium | The chemical element of atomic number 106, a very unstable element made by high-energy atomic collisions |
| rutherfordium | The chemical element of atomic number 104, a very unstable element made by high-energy atomic collisions |
| ENOL | Unstable compound |
| ENOL | Often unstable compound |
