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Explore all 118 elements with detailed properties, electron configurations, and more. The most comprehensive free periodic table online.
All 118 elements with complete properties
Complete periodic table with all discovered elements including superheavies
Certified atomic masses and properties from official sources
Find elements by name, symbol, or atomic number instantly
Electron configuration, electronegativity, oxidation states, and more
Perfect for students learning chemistry concepts
Click any element for detailed information
Some of the most important elements in chemistry
Most abundant element in the universe
Basis of all organic chemistry
Most used metal on Earth
One of the least reactive elements
Elements are arranged by increasing atomic number (number of protons). Rows are called periods and columns are called groups. Elements in the same group have similar chemical properties because they have the same number of valence electrons.
Our periodic table uses official NIST (National Institute of Standards and Technology) and IUPAC (International Union of Pure and Applied Chemistry) certified data for atomic masses and other properties.
There are 118 confirmed elements. Elements 1-94 occur naturally, while 95-118 are synthetic. The latest additions (113-118) were confirmed by IUPAC in 2016.
Elements are categorized into: alkali metals, alkaline earth metals, transition metals, post-transition metals, metalloids, nonmetals, halogens, noble gases, lanthanides, and actinides.
Absolutely! Our periodic table is perfect for students. It includes all the information typically needed for chemistry classes, with NIST-certified accuracy for homework and exams.
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