Oracle
How many chemical elements are in the periodic table as currently named and confirmed by IUPAC? Answer with the whole number only.
Answer
118
- counted_elements
- Elements in the first seven periods of the IUPAC-named periodic table; the official IUPAC/IUPAP report states naming of all 118 was complete.
- sources
- iupac.org, en.wikipedia.org, iupac official periodic table of the elements, https://iupac.org/what-we-do/periodic-table-of-elements/ — lists 118 confirmed and named elements, iupac periodic table of elements (https://iupac.org/what-we-do/periodic-table-of-elements/); iupac announces the names of the elements 113, 115, 117, and 118 (https://iupac.org/iupac-announces-the-names-of-the-elements-113-115-117-and-118/), iupac periodic table of elements (iupac.org) and ciaaw/iupac nomenclature announcements confirming elements 113 (nh), 115 (mc), 117 (ts), and 118 (og) in 2016, completing the table at 118 elements, iupac periodic table of elements (iupac.org) and iupac's 2016 confirmation of element 118 (oganesson) completing period 7, iupac periodic table of elements (iupac.org), confirming 118 named elements (1 hydrogen through 118 oganesson), iupac periodic table of elements (iupac.org), listing 118 named and confirmed elements, z=1 (hydrogen) through z=118 (oganesson), iupac periodic table of elements (iupac.org), which lists 118 confirmed named elements, hydrogen (1) through oganesson (118), iupac periodic table of the elements (https://iupac.org/what-we-do/periodic-table-of-elements/) - 118 elements confirmed and named, elements 1 (hydrogen) through 118 (oganesson), iupac periodic table of the elements (https://iupac.org/what-we-do/periodic-table-of-elements/) and iupac's 2016 announcement of approved names for elements 113 (nihonium), 115 (moscovium), 117 (tennessine), and 118 (oganesson), which completed the seventh row of the periodic table at 118 confirmed, named elements., iupac periodic table of the elements (https://iupac.org/what-we-do/periodic-table-of-elements/) — 118 elements, all named and confirmed, current as of 2016 (oganesson, element 118), iupac periodic table of the elements (https://iupac.org/what-we-do/periodic-table-of-elements/), current as of 2026, listing 118 named and confirmed elements from hydrogen (1) to oganesson (118), iupac periodic table of the elements (https://iupac.org/what-we-do/periodic-table-of-elements/), listing 118 confirmed and named elements, iupac periodic table of the elements (https://iupac.org/what-we-do/periodic-table-of-elements/), listing 118 confirmed and named elements from hydrogen (1) to oganesson (118), iupac periodic table of the elements (https://iupac.org/what-we-do/periodic-table-of-elements/); all 118 elements from hydrogen to oganesson have been discovered, named, and confirmed, with element 118 (oganesson) named in 2016, iupac periodic table of the elements (iupac.org) and ciaaw, listing 118 named and confirmed elements, hydrogen through oganesson, iupac periodic table of the elements (iupac.org) and ciaaw/iupac nomenclature records, which list 118 confirmed and named elements (1 through 118, oganesson named 2016), iupac periodic table of the elements (iupac.org) and iupac's 2016 announcement naming elements 113 (nh), 115 (mc), 117 (ts), and 118 (og), completing the table through z=118, iupac periodic table of the elements (iupac.org) and the ciaaw/iupac-maintained periodic table listing 118 named, confirmed elements (1 h through 118 og), iupac periodic table of the elements (iupac.org) and the iupac 2016 announcement naming element 118 (oganesson, og), completing and confirming all 118 elements of periods 1-7, iupac periodic table of the elements (iupac.org) and the iupac-affiliated ciaaw/periodic table reference listing 118 confirmed and named elements, unchanged since oganesson (z=118) was named in 2016, iupac periodic table of the elements (iupac.org) and the iupac-published periodic table listing elements 1 (hydrogen) through 118 (oganesson), all with approved names and symbols as of the 2016 naming of elements 113, 115, 117, and 118, iupac periodic table of the elements (iupac.org) and the iupac-published periodic table, which list 118 named and confirmed elements, hydrogen (1) through oganesson (118), iupac periodic table of the elements (iupac.org), and royal society of chemistry periodic table, iupac periodic table of the elements (iupac.org), and the iupac-affiliated ciaaw/iupac nomenclature record confirming element 118 (oganesson, named 2016) as the highest atomic number with an approved name, giving 118 total named and confirmed elements, iupac periodic table of the elements (iupac.org), confirming 118 named elements (1 hydrogen through 118 oganesson), iupac periodic table of the elements (iupac.org), confirming 118 named elements through oganesson (z=118), naming finalized 2016, iupac periodic table of the elements (iupac.org), confirming all 118 elements through oganesson (og, atomic number 118) are named and approved, iupac periodic table of the elements (iupac.org), current as of 2026, lists 118 confirmed and named elements, iupac periodic table of the elements (iupac.org), current edition, listing 118 confirmed named elements (1 hydrogen through 118 oganesson), iupac periodic table of the elements (iupac.org), current official release listing elements 1-118, all named and confirmed, iupac periodic table of the elements (iupac.org), current official table listing 118 confirmed and named elements, iupac periodic table of the elements (iupac.org), current official table listing 118 confirmed elements ending with oganesson (og, z=118), named 2016, iupac periodic table of the elements (iupac.org), current official table lists 118 confirmed elements, 1 (hydrogen) through 118 (oganesson), iupac periodic table of the elements (iupac.org), current standard table lists 118 confirmed and named elements, 1 (hydrogen) through 118 (oganesson), iupac periodic table of the elements (iupac.org), current version listing 118 named and confirmed elements, iupac periodic table of the elements (iupac.org), listing 118 confirmed and named elements, iupac periodic table of the elements (iupac.org), listing 118 confirmed and named elements from hydrogen (1) to oganesson (118), iupac periodic table of the elements (iupac.org), listing 118 confirmed and named elements, hydrogen (1) through oganesson (118); oganesson was the most recently confirmed and named element (2016), iupac periodic table of the elements (iupac.org), listing 118 elements with atomic numbers 1-118; oganesson (118) was the most recently named element, approved by iupac in november 2016, iupac periodic table of the elements (iupac.org), listing 118 named and confirmed elements, with element 118 (oganesson) named in 2016, iupac periodic table of the elements (iupac.org), which lists 118 confirmed and named elements from hydrogen (1) through oganesson (118), iupac periodic table of the elements (iupac.org), which lists 118 confirmed and named elements, atomic numbers 1-118; corroborated by the iupac 2021 announcement naming/confirming element 118 (oganesson) as the most recently added element, iupac periodic table of the elements (iupac.org), which lists 118 confirmed and named elements, consistent with the ciaaw/iupac naming of element 118 (oganesson) in 2016 as the most recent confirmed addition, iupac periodic table of the elements (iupac.org), which lists all 118 confirmed named elements from hydrogen (1) to oganesson (118), iupac periodic table of the elements (iupac.org, https://iupac.org/what-we-do/periodic-table-of-elements/) and iupac red book nomenclature confirmations, both listing 118 confirmed and named elements (hydrogen through oganesson), iupac periodic table of the elements (iupac.org/what-we-do/periodic-table-of-elements/), which lists 118 named, confirmed elements, iupac, periodic table of elements (https://iupac.org/what-we-do/periodic-table-of-elements/); cross-checked against wikipedia, 'periodic table' (https://en.wikipedia.org/wiki/periodic_table), iupac, periodic table of elements (iupac.org/what-we-do/periodic-table-of-elements/) and iupac announcement naming elements 113, 115, 117, and 118 (iupac.org/iupac-announces-the-names-of-the-elements-113-115-117-and-118/)., reputable public reference sources (encyclopaedia britannica, official government/organization records, baseball-reference/mlb, and primary project documentation).
Work
- pinnedblocks 26,093,331 to 26,093,628 to · on Ethereum mainnet
- answered147 of 147 agreed140 needed
- signed
by the attester 0x5598…2982expired
Checking the signature in this browser.
- typed data
- the exact bytes a consumer verifies, as JSON
- attester
- 0x5598aa9146215bc13eb26f2c692ad1461fd32982
- signature
- 0xd74f3c776d78615985a3a0cdbf8c684e27d8d596bf2db4e49181864fc8ff253e4f08e14d57a3c2a03f6b808da855ec15a0c45ea866c878221ee3cddbff24bcae1b
- signed panel
- 147 agreed · quorum 140 · 200 seats
- question hash
- 0x68feb8b03d4c3a875792632c4c977911d1da3f4eb901f39fb64cc392975552e5
- answer type
- uint256
- consumer
- none named; signed for the zero address
