Unit 1
Atomic Structure
Counting atoms, finding electrons, spotting periodic trends.
3
Clusters
9
Simulations
01
4 sims
Counting matter
Moles, mass spectra, and how we describe amounts of stuff.
02
3 sims
Electron structure & spectra
Where electrons live in an atom and the light they emit or absorb.
03
2 sims
Periodic patterns
Group position sets valence electrons, ion charge, and every periodic trend.