Elements turns the periodic table into a chart you fill in yourself. Every element starts as an empty tile. Answer it right and the tile takes its colour. Write its symbol or put it back in its place from memory, and it is mastered. Practice that remembers what you forget A round is ten questions. The elements you missed come back first, the ones you know come back days later, and a few new ones join in atomic order. There are no streaks or badges: the chart itself shows what you know. Six ways to practice - Symbol to name: see Fe, pick iron - Name to symbol: see iron, pick Fe from symbols that look alike - Write the symbol: type it on a letter pad that writes it the way a test expects, Na and not NA - Find it on the table: put the tile back in its slot, by group and period - Atomic number: which element is number 26? - Families: metal, halogen or noble gas? The whole table Tap any element for its atomic mass, electron configuration, state at room temperature, group, period, block and year of discovery. The eleven symbols that come from Latin or German say where they come from: Na from natrium, W from wolfram. Search by name, symbol or number, and switch between your progress and the family colours. Start with the first 20 School courses often begin with the first 20 elements. Start there, move up to 36, then take on all 118. Offline by design Elements needs no login and no connection. Your chart is kept on the phone itself; Apple's privacy section for the app says Data Not Collected. What is free The first 20 elements in symbol-to-name practice, the full table and every element card. Buying the unlock once adds elements 21 to 118 and the other five ways to practice. No subscription.
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