Zperiod - Periodic Table

Zperiod turns the periodic table into something you can explore, rotate and understand. Tap any of the 118 elements to see its atom in 3D, then watch bonds and chemical reactions unfold step by step in animated 3D labs. It is made for students who want to see chemistry, not just memorize it. Explore the periodic table - All 118 elements in one interactive periodic table, colored by category - Pinch to zoom and drag to move around - Search by name, symbol or atomic number - Filter by element category to focus on one group See every atom in 3D - Tap an element to open its atom: a nucleus of protons and neutrons, with electron shells and orbiting electrons - Rotate the atom with one finger to study its structure from every angle - Read an info card for each element: atomic structure, physical and chemical properties, discovery, a short description and everyday uses Watch chemistry happen in 3D labs Eight animated labs show how atoms bond and how chemical reactions work: - Covalent bond (H₂) - Ionic bond (NaCl) - Polar molecule (H₂O) - Water synthesis - Methane combustion - Iron oxidation (rust) - Acid-base neutralization - Hydrogen peroxide decomposition Play, pause and scrub the timeline, rotate the molecules, and read a caption that explains every step. Made for learning - Available in Spanish, English and French, with a language switch inside the app - A short intro and a guided tour with speech bubbles show you around - Light and dark themes - Works 100% offline, so you can study anywhere Private by design Zperiod has no ads, no accounts, no analytics and no in-app purchases. The app does not connect to the internet. It keeps only your preferences (language, theme, and whether you have seen the intro and tours) on your device. Data source Element data comes from PubChem, a chemistry database maintained by the U.S. National Library of Medicine.