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bn:00006918n
Noun Concept
SYL
radon
EN
A radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health WordNet 3.0
English:
RN
element
Relations
Sources
IS A
EN
noble gas
EN
chemical element
EN
gas
PART OF
EN
noble gas
EN
period 6
EN
radon difluoride
HAS KIND
EN
radon-222
EN
radon-219
EN
radon-221
EN
radon-218
EN
radon-217
+30 relations
DESCRIBED BY SOURCE
EN
Armenian Soviet Encyclopedia
DIFFERENT FROM
EN
radium
DISCOVERER OR INVENTOR
Friedrich Ernst Dorn
HAS QUALITY
EN
decay
EN
colorlessness
NAMED AFTER
EN
radium
PRODUCED BY
EN
granite
BabelNet
SYL
radon

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