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Field reference · 118 elements

The Periodic Table

Every known element, arranged by atomic number and laid out so that elements in the same column share chemical behavior. Click any tile to read about it, switch the color views to surface different patterns, and hover to light up an element's group and period.

Hover an element to highlight everything in its group (column) and period (row). The two pulled-out rows at the bottom are the lanthanides and actinides; they belong in the gaps marked 57 to 71 and 89 to 103. Values in brackets show the mass number of the most stable isotope for radioactive elements.
Interactive Periodic Table · Study Spark