⚛️ Atom Lab

Short levels, 1–3 minutes each. Three stars for a clean run.

• ⚛️ Build an atom Protons, neutrons and electrons → element, charge, mass number 0 / 12 levels ★ 0 / 36
• 📦 Orbital boxes Fill orbitals by Aufbau, Pauli and Hund 0 / 16 levels ★ 0 / 48
• ⚔️ Trend duel Which is bigger? Explain it with shells and Zeff 0 / 10 levels ★ 0 / 30
• 🔋 Make an ion Add or remove electrons to reach a noble-gas configuration 0 / 12 levels ★ 0 / 36
• 🔗 Lewis structures Bonds and lone pairs until every atom has its octet 0 / 12 levels ★ 0 / 36