BYTETOOLS

Interactive Periodic Table

Explore all 118 elements in the standard layout. Click any element for its atomic weight, group, period, block, electron configuration and state.

57–71
89–103
Alkali metalAlkaline earth metalTransition metalPost-transition metalMetalloidReactive nonmetalHalogenNoble gasLanthanideActinideUnknown properties

Carbon — element 6

6C12.011
Atomic weight
12.011 u
Category
Reactive nonmetal
Group / period
Group 14 · Period 2
Block
p-block
State at 25 °C
Solid
Electron configuration
[He] 2s2 2p2

Atomic weights follow the IUPAC 2021 abridged standard atomic weights. Values in square brackets are the mass number of the most stable known isotope, used for elements with no stable form. Lanthanum and actinium are shown at the head of the f-block rows, the layout used by most textbooks; IUPAC places lutetium and lawrencium in group 3 instead. Configurations for elements above 108 are predicted, not measured.

What is the Interactive Periodic Table?

The periodic table arranges all 118 known chemical elements by increasing atomic number, so elements in the same column share similar chemical behaviour because they have the same number of outer electrons.

  • All 118 elements in the standard 18-column layout
  • Colour-coded by element category with a legend
  • Search by name, symbol or atomic number
  • Atomic weight, group, period, block and electron configuration
  • Physical state at 25 °C for every element
  • No network requests — the data ships with the page

How to use the Interactive Periodic Table

  1. 1

    Scroll or search to find the element you want.

  2. 2

    Type a name, symbol or atomic number to filter the table.

  3. 3

    Use the category filter to isolate one family of elements.

  4. 4

    Click a tile to open its full detail panel.

  5. 5

    Copy the details for your notes or flashcards.

About the Interactive Periodic Table

The ByteTools Interactive Periodic Table shows all 118 elements in the familiar 18-column layout, colour-coded by category from alkali metals through to noble gases. Click any tile and a detail panel opens with the element's atomic number, standard atomic weight, group, period, block, electron configuration and physical state at room temperature.

A search box filters by name, symbol or atomic number, and a category filter dims everything outside the group you are studying — handy for revision when you want to see just the halogens or just the transition metals. The lanthanides and actinides appear on their own rows beneath the main table, as they do in most textbooks.

The entire dataset is built into the page, so there are no lookups, no tracking and no waiting. It loads instantly, works offline and never sends anything you click or type to a server.

Frequently asked questions

How many elements are in the periodic table?

118 are currently recognised, running from hydrogen at atomic number 1 to oganesson at 118. Everything past uranium, element 92, is produced artificially, and the heaviest of them exist for only fractions of a second.

What do the groups and periods mean?

A period is a horizontal row and tells you which electron shell is being filled. A group is a vertical column, and elements within one share the same number of outer electrons, which is why they behave so similarly in reactions.

Why are the lanthanides and actinides shown separately?

They belong between groups 2 and 3 of periods 6 and 7, but printing them inline would make the table 32 columns wide. Pulling the f-block out into two rows underneath keeps the layout readable without changing the chemistry.

What do the atomic weights in square brackets mean?

They mark elements with no stable isotope, such as technetium and everything beyond bismuth. IUPAC publishes no standard atomic weight for these, so the mass number of the most stable known isotope is given instead.

What is an electron configuration?

It describes how an atom's electrons are distributed across its orbitals, written in condensed form using the previous noble gas. Carbon is [He] 2s² 2p², meaning helium's two electrons plus four more in the second shell.

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