World 2 · Stability and Decay · 12 min · PRO
The band of stability
A map of every nucleus, with neutrons on one axis and protons on the other
PRO · Atom Core
World 2: Stability and Decay is part of PRO
The first world of Atom Core is free. PRO opens the other 23 lessons in 6 worlds — simulations, quizzes and all.
PRO includes
- All 60 labs — every world, every lesson
- Practice exams and certificates
$8.33/mo, billed yearly ($99.99) · or $39.99 monthly