The atomic structure timeline outlines key developments in our understanding of atoms, from ancient Greek philosophers to modern quantum mechanics. This fundamental concept in chemistry and physics has evolved dramatically over centuries of scientific inquiry and experimentation.
• Ancient Greek philosophers first proposed the idea of indivisible particles
• John Dalton formulated the first modern atomic theory in the early 1800s
• Discoveries of subatomic particles in the late 19th/early 20th century revolutionized atomic models
• Quantum mechanics in the 1920s-30s provided our current understanding of electron behavior
Highlight: The history of the atom timeline GCSE covers major milestones from Democritus to Bohr that students need to know for exams.
