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How do I look up an element on the interactive periodic table?

Open AnyTool Periodic Table and you get all 118 elements in the standard 18-column layout, colour-coded by chemical family. Tap any element to see its atomic number and IUPAC atomic weight, group, period, s/p/d/f block, condensed electron configuration, standard state and Pauling electronegativity, plus a one-line summary. Search by name, symbol or atomic number to highlight a match, or click a category in the legend to light up a whole family. Everything runs in your browser, so nothing is uploaded and it works offline.

  • All 118 confirmed elements in the conventional table layout
  • Tap an element for mass, electron configuration, block, state and more
  • Search by name, symbol or atomic number (e.g. Iron, Fe or 26)
  • Click a category to highlight that whole chemical family
  • 100% in your browser — no upload, no signup, works offline

What is

Periodic table of the elements

The periodic table is a tabular arrangement of the chemical elements ordered by increasing atomic number (the number of protons), grouped into 18 columns (groups) and 7 rows (periods) so that elements with similar chemical behaviour fall into the same column. Its shape reflects electron configuration: the s-, p-, d- and f-blocks correspond to the type of orbital being filled, and the f-block (lanthanides and actinides) is conventionally drawn on two rows below the main body.

Calculators

Related terms

Atomic numberAtomic weightElectron configurationElectronegativityGroup and period

Frequently Asked Questions

There are 118 confirmed elements, from hydrogen (atomic number 1) to oganesson (118).

The periodic table currently has 118 confirmed chemical elements, numbered 1 to 118 by the number of protons in the nucleus. About 94 occur naturally on Earth; the rest, including all of the superheavy elements beyond uranium, have only ever been made in laboratories. AnyTool Periodic Table shows all 118 with their properties.

Each element shows its atomic number, symbol and atomic weight, with full details on tap.

Every cell shows the atomic number, chemical symbol, name and IUPAC standard atomic weight, colour-coded by chemical family. Tapping an element opens a panel with its group, period, s/p/d/f block, condensed (noble-gas shorthand) electron configuration, standard state at room temperature, Pauling electronegativity where it is measured, and a one-line summary of what the element is used for.

Atomic weight is a weighted average of an element’s naturally occurring isotopes, so it is rarely a whole number.

An element’s standard atomic weight is the average mass of its atoms, weighting each isotope by how common it is in nature, so it almost never lands on a whole number — chlorine, for example, averages about 35.45. For elements with no stable isotope, AnyTool shows the mass number of the most stable isotope in square brackets instead of a measured weight.

Superheavy element properties are largely predicted, not measured — and nothing you do is uploaded; it all runs in your browser.

For the superheavy elements (atomic number roughly 104 and above) only a handful of short-lived atoms have ever been created, so their categories, standard states and even electron configurations are best estimates from theory rather than measurements, and AnyTool labels this clearly. The whole table runs in your browser, so no searches or data are ever sent to a server and the page works offline.

Detailed Explanation

How It Works

How the Interactive Periodic Table Is Organised

AnyTool Periodic Table renders all 118 confirmed elements in the conventional 18-column, 7-period layout, with the lanthanide and actinide f-block placed on two strip rows beneath the main body — the standard presentation that keeps the table a readable width. Elements are ordered by atomic number (proton count) and coloured by chemical family: alkali metals, alkaline earth metals, transition metals, post-transition metals, metalloids, reactive nonmetals, halogens, noble gases, lanthanides and actinides. The columns (groups) gather elements with the same valence-electron pattern and therefore similar chemistry, while the s-, p-, d- and f-block regions mirror which orbital is being filled.

  • All 118 elements in the standard 18-column × 7-period grid
  • Lanthanides and actinides on two f-block strip rows below
  • Ordered by atomic number; coloured by chemical family
  • Groups share valence configuration and similar chemistry
  • s/p/d/f blocks reflect the orbital being filled
Methodology

What Each Element Shows

Every cell carries the atomic number, chemical symbol, name and IUPAC standard atomic weight. Selecting an element opens a detail panel with its group and period, its s/p/d/f block, the condensed (noble-gas shorthand) ground-state electron configuration, the standard state at room temperature (solid, liquid or gas), the Pauling electronegativity where it is measured, and a concise summary of the element’s nature and uses. A search box accepts a name, symbol or atomic number and highlights the match, and the category legend is clickable so a whole family can be lit up at once. All of this is computed and rendered locally from a typed dataset bundled with the page.

  • Atomic number, symbol, name and IUPAC atomic weight on every cell
  • Detail panel: group, period, block, electron configuration
  • Standard state and Pauling electronegativity where measured
  • Search by name, symbol or atomic number
  • Clickable legend highlights an entire chemical family
Limitations

Data Sources and Predicted Superheavy Properties

Atomic masses are IUPAC standard atomic weights; for elements with no stable isotope the value shown in square brackets is the mass number of the most stable or best-characterised isotope rather than a measured average, which is why those are quoted differently. Electronegativities use the Pauling scale and are omitted where no meaningful value exists, such as for most noble gases and the superheavy elements. Crucially, the chemistry of the superheavy elements (atomic number roughly 104 and above) is largely predicted: only a handful of short-lived atoms have ever been synthesised, so their family classification, standard state and electron configuration are best estimates from theory. AnyTool states this limitation plainly so the table is used as the reference it is.

  • Atomic weights are IUPAC standard atomic weights
  • Unstable elements show the most-stable isotope mass in [brackets]
  • Electronegativity on the Pauling scale, omitted where not measured
  • Superheavy (Z ≳ 104) properties are predicted, not measured
  • Limitations are stated openly on the page
Periodic table lookup: in-browser (AnyTool) vs typical online tables
CapabilityAnyToolTypical online tables
ProcessingRuns in your browserOften server-rendered or ad-driven
CoverageAll 118 elementsUsually all 118
Per-element detailMass, config, block, state, electronegativityOften mass and category only
SearchName, symbol or atomic numberSometimes none
Category highlightClick a family in the legendOften static colours only
Honest data caveatsPredicted superheavy properties flaggedRarely noted
Works offlineYes (PWA)No
Cost / signupFree, no signupOften ad-heavy or gated

AnyTool renders the table and every element detail locally and uploads nothing.