- A colorless, radioactive, inert gaseous element formed by the radioactive decay of radium. It is used as a radiation source in radiotherapy and to produce neutrons for research. Its most stable isotope is Rn 222 with a half-life of 3.82 days. Atomic number 86; melting point -71°C; boiling point -61.8°C; specific gravity (solid) 4. See Table at element.
Malayalam MeaningTransliteration ON/OFF | Not Correct/Proper?
;റേഡിയോ ആക്ടീവതയുള്ള ഒരു വാതകമൂലകം - Rediyo Aakdeevathayulla Oru Vaathakamoolakam | Rediyo akdeevathayulla Oru Vathakamoolakam ;