Chemical Elements Practice

Chemical Elements Practice is a Chrome extension that helps you learn all 118 elements through an adaptive spaced repetition system. It adjusts study intervals to your memory performance, increasing intervals when you recall reliably and decreasing when you hesitate, so you spend time on what needs reinforcement. It supports two modes—Multiple Choice for quick practice and Self-Assessment for active recall—and lets you review elements by their block (s-, p-, d-, f-block) with customizable categories and easy progress tracking.

Tests, medals, and a full card browser provide transparent feedback and flexible review. You can toggle elements on/off by category and choose from question types like Symbol→Name, Name→Symbol, and prompts about sets, groups, or periods. Every setting can be changed anytime without losing progress, making it safe to experiment and tailor the learning to your goals.