Elemio: Periodic Table

Elemio teaches the periodic table and the basics of chemistry with short quizzes and unlimited drills. Mistakes come back a few days later, so what you learn stays with you. THE PERIODIC TABLE • All 118 elements, coloured by category, electronegativity, atomic radius, ionization energy, state at room temperature or your own learning status • On a phone, pinch to zoom and drag; on a tablet the whole table fits, with the selected element beside it • Search by name, symbol or atomic number • Element pages: atomic weight, electron configuration with a shell diagram, electronegativity, ionization energy, melting and boiling points, density, common ions and example compounds, place in the table • Choose the layout for group 3: lanthanides and actinides below, or Lu and Lr in group 3 as recommended by IUPAC QUIZZES • Symbol to name, name to symbol, place in the table, group and period, common ion, valence electrons • Distractors are chosen from elements that are easy to confuse (Na, Ne, N); your own mix-ups are remembered and practised • A short daily set with spaced repetition: new elements for your level plus the reviews that are due DRILLS (UNLIMITED) • Balancing equations: set the coefficients with steppers while the atom count updates live; a step-by-step solution on request • Molar mass and percent by mass, with the solution line by line • Naming ionic compounds, from formula to name and from name to formula • Electron configuration: fill the orbital boxes (Hund's rule), including the Cr and Cu exceptions at the advanced level • Ions and valence electrons from the group number THREE LEVELS • Beginner: the first 20 elements • High school: all 118 elements, ions, balancing and molar mass • Advanced: trends, configuration exceptions, harder equations PRIVATE BY DESIGN • No internet permission, no account, no ads, no analytics: your progress stays on your device • Back up and restore everything with a single file; share an element card or your progress as an image Element data comes from Wikidata (CC0) and is cross-checked against Wikipedia data pages; standard atomic weights follow IUPAC. Values are rounded. Questions, equations and solutions are written by FigBell. Phone and tablet layouts, light and dark theme, 20 languages. Try it free for 3 days, then unlock the full version with a single purchase — no subscription, no ads. Elemio, by FigBell — Simple tools. No ads. Just what you need.

Fix: scrolled content no longer slides under the status bar at the top of the screen.