Crossword clue
“Unstable noble gas”
This clue appeared as 126-Across in the NYT Crossword on Sunday, July 13, 2025. The answer has 5 letters.
Answer · 5 lettersFirst appearance
RADONLetters5
Starts withR
Ends withN
Vowels2
Where this clue has appeared
About this clue
The clue “Unstable noble gas” ran in the NYT Crossword on July 13, 2025 as 126-Across. Its answer is a 5-letter word that starts with R and ends with N.
See every answer from the puzzle on the NYT Crossword page for July 13, 2025, or learn how clues like this work in our guide to crossword clue types.
More clues from this puzzle
1ACry from a guard tower4 letters5AImaginary fiends6 letters11AAssign a number, maybe4 letters15ATakes orders at a restaurant5 letters20AGreat Plains tribe4 letters21A"I'll be right with you"6 letters22AName that becomes a shape if you switch the second and fourth letters4 letters23AThey might leave you in stitches, for short6 letters
FAQ
What is the answer to the “Unstable noble gas” clue?+
The answer is RADON (5 letters), from the NYT Crossword of July 13, 2025.
Where has this clue appeared?+
We have seen it 1 time in the NYT Crossword.
How do I find other NYT Crossword answers?+
Open the full list of answers for July 13, 2025, or browse every date on the NYT Crossword hub.