How to pronounce radon
Say it like RAY-dahn. Radon has two syllables, and the main stress falls on the first one (RAY).
Click the play button next to American or British to hear how to pronounce radon. Choose Slow to hear each sound clearly.
- RAY
- dahn
- Main stress
- Lighter stress
- Unstressed
Radon pronunciation, sound by sound
Read the parts left to right, then blend them together without pausing.
- RAYSay this part loudest and longest. The vowel is the "ay" in day.
- dahnGive this part a little weight. The vowel is the "ah" in father.
American vs British pronunciation of radon
- The short o is rounded in British English (as in "hot"), but open and unrounded in American English.
British respelling: RAY-don.
What does radon mean?
- The chemical element (symbol Rn, formerly Ro) with atomic number 86. It is an odorless, colorless, chemically inert but radioactive noble gas.
- An atom of this element.
- Radon-222 (22286Rn), the most stable isotope of said element.
Where does radon come from?
Contraction of radium emanation, since the element appears in the radioactive decay of radium.
Similar and opposite words
Similar meaning
- rn
Questions about saying radon
How do you pronounce radon?
Say RAY-dahn. The American pronunciation is /ˈreɪˌdɑn/. In British English it is /ˈreɪˌdɒn/. Press play above to hear it at normal speed or slowly.
How many syllables are in radon?
Radon has two syllables, and the main stress falls on the first one (RAY). Broken into parts: RAY · dahn.
Is radon pronounced differently in British English?
Yes. The short o is rounded in British English (as in "hot"), but open and unrounded in American English. The British form is /ˈreɪˌdɒn/ (RAY-don).