118 elements, a 3D atomic model and a smart assistant
Explore the world of elements
Explore the world of elements
in 3D
Mendeleev is an interactive periodic table: every element comes with an animated atomic model, precise physical and chemical properties, its discovery history and a real picture. If you have any question, the chemistry AI assistant will answer it.
118Chemical elements
7Periods
18Groups
24/7Smart assistant
Bohr atomic modelAnimated electron shells
Name searchName, symbol or atomic number
A look at Mendeleev
Swipe, or drag with the mouse, to move between the sections
Why Mendeleev?
A tool built for really learning chemistry
Smart search
Search the elements by name, symbol, atomic number or category, with instant results
Live atomic model
The electron shells of every element rotate smoothly and efficiently, matched to your device's power
Responsive design
A consistent experience on every device, from mobile and tablet to desktop and laptop
Automatic quality tuning
Your device's power is measured and the heaviness of the effects is tuned automatically
Accurate scientific data
Atomic mass, atomic radius, electronegativity, melting and boiling points and other physical properties
Discovery history
The discovery story of every element, with the name of the scientist who discovered it and the year
AI assistant
Ask your chemistry questions and get precise answers with formulas and tables
Real pictures of the elements
Every element shows a picture of the material itself, of its use, or of the scientist who discovered it
Periodic table elements
Click an element's name to see its properties, electron shells and uses. See the full list of elements
- HHydrogen
- HeHelium
- LiLithium
- BeBeryllium
- BBoron
- CCarbon
- NNitrogen
- OOxygen
- FFluorine
- NeNeon
- NaSodium
- MgMagnesium
- AlAluminum
- SiSilicon
- PPhosphorus
- SSulfur
- ClChlorine
- ArArgon
- KPotassium
- CaCalcium
- ScScandium
- TiTitanium
- VVanadium
- CrChromium
- MnManganese
- FeIron
- CoCobalt
- NiNickel
- CuCopper
- ZnZinc
- GaGallium
- GeGermanium
- AsArsenic
- SeSelenium
- BrBromine
- KrKrypton
- RbRubidium
- SrStrontium
- YYttrium
- ZrZirconium
- NbNiobium
- MoMolybdenum
- TcTechnetium
- RuRuthenium
- RhRhodium
- PdPalladium
- AgSilver
- CdCadmium
- InIndium
- SnTin
- SbAntimony
- TeTellurium
- IIodine
- XeXenon
- CsCesium
- BaBarium
- LaLanthanum
- CeCerium
- PrPraseodymium
- NdNeodymium
- PmPromethium
- SmSamarium
- EuEuropium
- GdGadolinium
- TbTerbium
- DyDysprosium
- HoHolmium
- ErErbium
- TmThulium
- YbYtterbium
- LuLutetium
- HfHafnium
- TaTantalum
- WTungsten
- ReRhenium
- OsOsmium
- IrIridium
- PtPlatinum
- AuGold
- HgMercury
- TlThallium
- PbLead
- BiBismuth
- PoPolonium
- AtAstatine
- RnRadon
- FrFrancium
- RaRadium
- AcActinium
- ThThorium
- PaProtactinium
- UUranium
- NpNeptunium
- PuPlutonium
- AmAmericium
- CmCurium
- BkBerkelium
- CfCalifornium
- EsEinsteinium
- FmFermium
- MdMendelevium
- NoNobelium
- LrLawrencium
- RfRutherfordium
- DbDubnium
- SgSeaborgium
- BhBohrium
- HsHassium
- MtMeitnerium
- DsDarmstadtium
- RgRoentgenium
- CnCopernicium
- NhNihonium
- FlFlerovium
- McMoscovium
- LvLivermorium
- TsTennessine
- OgOganesson
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Mendeleev is free and has no ads, and we want it to stay that way. But keeping an educational site running is not free: we have to pay for hosting and the domain, the AI service that answers your chemistry questions and the SMS that delivers the sign-up verification code, not to mention the hours spent completing the data, fixing bugs and building new features.
- Keeping the site stable and fast
- Keeping the AI assistant available to everyone; every answer it gives has a cost
- Improving the data and adding new content and features
Donating is completely optional and all Mendeleev features stay free without it. Payment is made through Daramet.
Got a chemistry question? Ask it right now
The Mendeleev AI assistant gives answers with formulas, tables and step-by-step explanations. Your chat history is saved too.