Element Collector

An interactive periodic table app covering all 118 elements. Pinch to zoom the periodic table, then tap an element to open its detail screen. On the detail screen, swipe left or right to move straight to the previous or next element. There's also a personal collection tracker for element collectors. Check off the real element samples you own, and the main screen shows at a glance how many you've collected, with collected elements highlighted. ■ Key features • A zoomable periodic table covering all 118 elements (optimized for tablets too) • Real photos of each element (sourced from Wikimedia Commons) • Atomic number, date of first discovery, melting/boiling point (°C/K) • Physical and chemical properties, production method, common uses • Hazard information (why it's dangerous or safe) — hazardous elements show their symbol in red on the periodic table • Electron configuration, oxidation states, electronegativity, ionization energy, atomic/covalent/van der Waals radius • Detailed material data: density, molar heat capacity, crystal structure, thermal conductivity, electrical resistivity, CAS number • Swipe left/right on the detail screen to quickly browse neighboring elements • Collection tracking: check off elements you own on the detail screen, and see your total on the main screen • "Highlight collected elements only" filter — dims elements you haven't collected yet so your collection stands out • A credits screen listing the source and license of every element photo Easy to use for anyone — from students just starting chemistry to hobbyists collecting real element samples.