国旗マスターアプリ vs Elements Gallery

世界各国の国旗を楽しく学べるアプリです。 196カ国の国旗を収録しました。地域を選択してクイズ形式で手軽に遊べるので、隙間時間で学習することが可能です。

A visual periodic table app covering all 118 elements. 2D PERIODIC TABLE A grid layout by group and period. Categories like alkali metals, halogens and transition metals are color-coded, so you can see an element's classification at a glance. Pinch to zoom into crowded blocks of elements for a closer look. ELEMENT DETAILS Tap an element to see its electron configuration through an intuitive rotating shell animation. Dig deeper with atomic number, mass, melting and boiling points, density, electronegativity, year of discovery, real-world photos with usage examples (sourced and licensed), a list of isotopes, molecular structures of representative compounds (water, carbon dioxide, ozone and more), and electron configuration changes for common ions. WHO IT IS FOR - Students studying basic or advanced chemistry - Anyone curious about elements and chemistry - Looking for reference material for a school project or class FEATURES - All 118 elements and 96 real photos bundled from the start — every feature works offline - Japanese and English supported (switches automatically with your device language) - No ads, no account required, no additional purchases - All photos are public domain or Creative Commons, with sources credited