| Answer | Crossword Clue |
|---|---|
| INERT | Like neon and xenon |
| INERT | Like xenon and neon |
| INERT | Like xenon or neon |
| INERT | Like neon or xenon |
| GASES | Neon and xenon |
| GASES | Xenon and neon |
| GASES | Neon and xenon, for two |
| INERT | Like xenon and helium |
| INERT | Like xenon and krypton |
| INERT | Like krypton and xenon |
| INERT | Like neon and argon |
| INERT | Like neon and helium |
| INERT | Like helium and neon |
| GASEOUS | Like nitrogen and neon |
| GASLIT | Like neon signs and some lanterns |
