The heaviest gases: radon(Hits：
)
World Record Name: heaviest gas: Radon
World record holder: Radon
World record fields: the heaviest gases
World Record rules: the heaviest gases
World record number: 20120200050
World Record valid: to record was broken up.
World Record Witness: No. 006 to Carrying the Flag Certification Division
World Records Source: World record library to Carrying the Flag
World Record Certification date: February 17, 2012
World Record Details:
The heaviest gas: radon, eight times heavier than air.
To challenge world record please E-mail : s@carryingtheflag.com or s@kangqi.org
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