Free Periodic Table Finder – 118 Elements

Periodic Table Finder

Search any element by name or symbol — free, instant, all 118 elements.

Element name or symbol

Finding an Element's Details Without Flipping Through a Chart

A printed periodic table crams 118 elements into a dense grid of tiny text, and finding one specific element's atomic number, mass, or category means visually scanning a cluttered chart. This tool lets you search any element by name or symbol and instantly pulls up its detailed information, no scanning required.

What Information Is Actually Included

Beyond just atomic number and symbol, each element's entry typically includes atomic mass, its category (metal, nonmetal, metalloid, noble gas, and so on), electron configuration, and its position within the table's period and group structure — the same core data a printed periodic table conveys, but retrieved instantly by search rather than requiring you to first locate the element visually among 118 densely packed entries.

A Worked Example

Searching "iron" or its symbol "Fe" instantly returns atomic number 26, atomic mass approximately 55.85, its classification as a transition metal, and its position in period 4 — information that would otherwise require locating iron's specific cell within the transition metal block of a printed chart, then cross-referencing a separate legend to confirm what each abbreviated notation on the cell actually means.

Who Actually Uses This

Chemistry students looking up specific element properties while working through homework problems, without needing a physical periodic table on hand. Someone curious about an everyday material's chemical composition, searching the relevant element by name rather than trying to identify its symbol first. Teachers building quiz questions or lesson materials who need quick, accurate reference data across several different elements. Anyone double-checking a specific element's atomic mass or category for a science-adjacent task, from a homework problem to general curiosity.

Why Searching by Name or Symbol Both Matter

Some people remember an element's full name more readily ("sodium") while others recall its chemical symbol first ("Na") — supporting search by either avoids forcing users to first translate one into the other before finding what they're looking for, which matters especially for less intuitive symbol abbreviations that don't obviously match the element's common name (like "Pb" for lead, derived from the Latin "plumbum" rather than the English name).

Understanding Element Categories

The periodic table's organization into categories — metals, nonmetals, metalloids, noble gases, and several more specific subcategories — isn't arbitrary; it reflects genuine shared chemical behavior among elements in each group, which is why elements in the same column (group) often react in chemically similar ways. Seeing an element's category alongside its raw numeric data helps connect that specific element to broader patterns in how it's expected to behave chemically.

Searched Instantly, On Your Device

The lookup runs against a complete local database of all 118 elements loaded directly with client-side JavaScript — no external API call or server lookup is needed, since every element's data is included in the searchable database from the start.

Does this include all 118 known elements, including recently discovered ones?

Yes — the complete set of all 118 officially recognized elements is included in the searchable database.

Can I search using a partial element name?

Depending on the search implementation, partial matches often work, returning any element whose name contains the searched text, making it easier to find an element even without remembering its exact full name.

What's the difference between atomic number and atomic mass?

Atomic number is the count of protons in the element's nucleus, defining what element it fundamentally is; atomic mass reflects the average mass of the element's naturally occurring isotopes, a different and generally larger number.

Why do some elements have symbols that don't match their English name?

Several element symbols derive from Latin or other historical names rather than their modern English name — like "Fe" for iron from "ferrum," or "Au" for gold from "aurum."

Is this data accurate for use in academic work?

The standard atomic data included (atomic number, mass, category) reflects widely accepted scientific values, suitable for general academic and reference use.

A Second Example

Someone reading a news article about a newly discovered lithium deposit wants a quick refresher on lithium's basic properties — searching it here instantly returns its atomic number, mass, and category as an alkali metal, enough context to understand why lithium behaves the way it does chemically without needing to dig through a full chemistry textbook for what amounts to a quick factual refresher.

Building Broader Chemistry Intuition Through Search

Searching several related elements in sequence — say, an entire group like the alkali metals or the halogens — reveals the periodic patterns that give the table its name and structure, since elements within the same group share meaningfully similar reactivity and properties, a pattern that becomes far more intuitive after directly comparing several actual entries side by side than from memorizing the group's name alone.