Oracle
Which noble gas is the lightest? Answer with the element name only, in English.
Answer
Helium
- lightest
- The noble gas with the lowest standard atomic weight.
- sources
- www.acs.org, edu.rsc.org, en.wikipedia.org, glossary.ametsoc.org, iupac / ciaaw standard atomic weights table: helium has atomic weight ~4.0026, the lowest among noble gases (he, ne, ar, kr, xe, rn, og), iupac periodic table of elements (https://iupac.org/what-we-do/periodic-table-of-elements/) lists helium (he, atomic number 2, standard atomic weight ~4.0026) as the noble gas with the lowest atomic number and atomic weight among the group 18 elements (he, ne, ar, kr, xe, rn, og)., iupac periodic table of elements / standard atomic weights: helium (atomic number 2, atomic weight ~4.0026) has the lowest atomic weight of the noble gases (he, ne, ar, kr, xe, rn, og), iupac periodic table of elements: group 18 (noble gases) — helium has the lowest atomic weight (~4.0026 u) among he, ne, ar, kr, xe, rn, og, iupac periodic table of elements: helium (atomic number 2, standard atomic weight ~4.0026) is the noble gas with the lowest atomic mass, lighter than neon, argon, krypton, xenon, and radon., iupac periodic table of the elements (iupac.org) — noble gases (group 18) standard atomic weights: helium 4.0026, neon 20.180, argon 39.948, krypton 83.798, xenon 131.29, radon (radioactive, no stable weight); helium has the lowest atomic weight., iupac periodic table of the elements (standard atomic weights): helium has atomic number 2 and standard atomic weight ~4.0026, the lowest among the noble gases (he < ne < ar < kr < xe < rn < og), iupac periodic table of the elements / crc handbook of chemistry and physics: standard atomic weights show helium (atomic number 2, ~4.0026 u) as the lowest-mass noble gas in group 18, iupac periodic table of the elements / standard atomic weights: helium (atomic number 2, standard atomic weight ~4.0026) is the noble gas with the lowest atomic weight among he, ne, ar, kr, xe, rn, iupac periodic table of the elements / standard atomic weights: helium has atomic number 2 and standard atomic weight ~4.0026, the lowest of all noble gases (neon ~20.18, argon ~39.95, krypton ~83.80, xenon ~131.29, radon and oganesson heavier still), iupac periodic table of the elements: helium (he, atomic number 2, standard atomic weight ~4.0026) has the lowest atomic weight of the noble gases (he, ne, ar, kr, xe, rn, og), iupac standard atomic weights (2021 table): helium (he) has atomic weight ~4.0026, the lowest among the noble gases (ne 20.18, ar 39.95, kr 83.80, xe 131.29, rn/og radioactive with higher mass numbers)., iupac standard atomic weights / crc handbook of chemistry and physics: helium has atomic weight ~4.0026 g/mol, the lowest of all noble gases (neon ~20.18, argon ~39.95, krypton ~83.80, xenon ~131.29, radon ~222), iupac standard atomic weights / periodic table: helium (atomic number 2, atomic weight ~4.0026) has the lowest atomic weight among the noble gases (he, ne, ar, kr, xe, rn, og), iupac standard atomic weights / periodic table: helium (atomic number 2, atomic weight ~4.0026) is the noble gas with the lowest atomic weight among he, ne, ar, kr, xe, rn, iupac.org, iupac/ciaaw standard atomic weights table: helium has atomic weight ~4.0026, the lowest of all group 18 (noble gas) elements, versus neon ~20.18, argon ~39.95, etc., iupac/nist periodic table data: helium (atomic number 2, standard atomic weight ~4.0026) is the noble gas with the lowest atomic weight among the group 18 elements, periodic-table.rsc.org, royal society of chemistry, chemistry in its element: xenon, https://periodic-table.rsc.org/podcast/54/xenon . the transcript identifies helium as the lightest member of the noble gas group., www.diamond.ac.uk
Work
- pinnedblocks 26,083,602 to 26,083,902 to · on Ethereum mainnet
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#1034Heliumfrom www.acs.org
#596Heliumfrom periodic-table.rsc.org
#1580Heliumfrom periodic-table.rsc.org
#613Heliumfrom www.acs.org
#798Heliumfrom www.acs.org68 more
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