Physics-Atomic structure

The idea of materials being made of “atoms” was proposed long before we had the technologies to look into any materials. But how did scientists resolve the mystery of atoms? How did we learn that atoms contain both positive nucleus and negative electrons, how did we know that electrons form “layers” around the nucleus?


About jlw

Junling got his PhD in Materials Engineering from University of Maryland, College Park. He is currently a Professor at Nanyang Technological University, Singapore, teaching undergraduate courses related to Quantum Mechanics.