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Which element has the largest standard atomic weight?
Quick Answer
Oganesson has the highest atomic number and the largest listed atomic mass among named elements, though its value is based on short-lived isotopes.
The Full Story
Oganesson is element 118, the heaviest named element on the periodic table. Because it is synthetic and highly unstable, its atomic mass is not a fixed natural value but is based on the isotopes that have been produced. It was first reported in 2002 through a collaboration involving JINR in Dubna and Lawrence Livermore National Laboratory. Oganesson sits at the end of the current periodic table and is part of the superheavy elements.
Key Facts
1.Oganesson is element 118
2.Named in 2016
3.First reported in 2002
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"The heaviest named element ever made"
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