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State the counting number in the periodic table of elements of the element considered to be the heaviest gas. (the answer should consist of numbers only)

User Sqwk
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9514 1404 393

Answer:

118

Explanation:

Oganesson is the heaviest element ever created. It is a "super-heavy" noble gas with a half-life less than 1 millisecond. Its atomic number is 118.

User Janez
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