118 elements are in the current periodic table.
118 elements are in the current periodic table.
how many elements in the current periodic table?
118
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section::::isotopes for elements 30-59.









































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section::::isotopes for elements 60-89.









































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section::::isotopes for elements 90-118.









































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section::::external links.









































bullet::::- interactive chart of nuclides (brookhaven national laboratory)









































bullet::::- the lund/lbnl nuclear data search









































bullet::::- an isotope table with clickable information on every isotope and its decay routes is available at chemlab.pc.maricopa.edu
table of nuclides (segmented, wide)
it is unclear whether new elements will continue the pattern of the current periodic table as period 8, or require further adaptations or adjustments. seaborg expected the eighth period to follow the previously established pattern exactly, so that it would include a two-element s-block for elements 119 and 120, a new g-block for the next 18 elements, and 30 additional elements continuing the current f-, d-, and p-blocks, culminating in element 168, the next noble gas. more recently, physicists such as pekka pyykkö have theorized that these additional elements do not follow the madelung rule, which predicts how electron shells are filled and thus affects the appearance of the present periodic table. there are currently several competing theoretical models for the placement of the elements of atomic number less than or equal to 172. in all of these it is element 172, rather than element 168, that emerges as the next noble gas after oganesson, although these must be regarded as speculative as no complete calculations have been done beyond element 123.
periodic table