INTERACTIVE
MINI GAMES
Practice chemistry concepts without going back to the lesson. Each game targets a specific idea — play it standalone or use it to review before a quiz.
VALENCE STRATEGY
↗ CHEMISTRY I — LESSON 2.2Given an element, decide whether it tends to lose, gain, share, or hold onto its valence electrons. Covers all main-group elements from the first three periods.
VALENCE ELECTRONSOCTET RULEREACTIVITY
// PRACTICE — VALENCE STRATEGY
ORBITAL RUSH
↗ CHEMISTRY I — LESSON 2.4Place electrons onto a 3D atom one spin at a time — applying Aufbau order and Hund's rule from memory. Play in Normal mode for a relaxed challenge, or Race the 60-second clock in Rush mode.
ELECTRON CONFIGURATIONHUND'S RULEAUFBAU
// MINIGAME — ORBITAL RUSH
ORBITAL RUSH
ELECTRON PLACEMENT CHALLENGE
1.A random element appears. Place its electrons onto the atom one at a time.
2.Pick ↑ or ↓ from the buckets. Either spin is fine for the first electron in a subshell — just stay consistent.
3.Hund's rule: all singly-occupied orbitals must match your chosen spin before any pairing begins.
4.Wrong spin = lose a life. Correct = electron appears on the glowing ring.
5.+10 pts per element completed without error.
SELECT MODE
No time limit — 3 lives. Take your time.