| 20 answers for: Krypton and xenon |
| RANK | ANSWER | CLUE |
| RAREGASES | Krypton and xenon |
| GASES | Krypton and xenon |
| RAMSAY | British chemist who discovered neon, argon, krypton and xenon, and won the 1904 Nobel Prize in Chemistry (last name only) |
| INERTGASES | Krypton and xenon, for two (5,5) |
| INERT | Like krypton and xenon |
| NEON | One of the elements co-discovered by Sir William Ramsay along with argon, helium, krypton and xenon |
| RARE | Which type of gases includes neon, krypton and xenon? (4) |
| NOBLEGASES | The ___" ___"; Isaac Asimovs account of the discoveries of argon, helium, krypton, neon, radon and xenon (5,5) |
| RAREGAS | Any of the unreactive elements helium, neon, argon, krypton, radon and xenon (4,3) |
| GASAS | Neon and xenon |
| DISCOS | Studio 54 and Xenon, famously |
| NOBLE | Like the gases argon and xenon |
| MIXEDUP | Iodine and xenon stored in unstable dump at sea (5-2) |
| XENON | Meaning "strange(r)", an element other than argon, krypton and neon co-discovered by William Ramsay (5) |
| INERTGAS | Any of helium, neon, argon, krypton, xenon and radon |
| ELEMENTS | Xenon and Argon |
| GAS | Krypton or xenon |
| NOBLEGAS | Krypton, xenon or argon |
| ARCS | Xenon ___ |
| ACRON | Greek physician, son of Xenon |
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