radon

Meaning

1. (uncountable) The chemical element (symbol Rn, formerly Ro) with atomic number 86. It is an odorless, colorless, chemically inert but radioactive noble gas.
2. (uncountable) Radon-222 (²²²₈₆Rn), the most stable isotope of said element.

Synonyms

Rn

niton

atomic number 86

radium emanation

Translations

radon

radón

radon

Radon

radó

radon

رادون

radon

rádon

ραδόνιο

radônio

rado

radon

ραδονιο

Pronounced as (IPA)

/ˈɹeɪdɒn/

Etymology

Contraction of radium emanation, since the element appears in the radioactive decay of radium. By surface analysis, radio- + -on (“suffix for noble gases”).