🌟 EVOLUTION OF ATOMIC STRUCTURE 🌟 From Dalton’s solid sphere to Schrödinger’s electron cloud — the atomic model has come a long way! 🧪 🧩 Dalton’s Model: Atoms are indivisible solid spheres. ⚡ Thomson’s Model: “Plum pudding model” — electrons embedded in a positively charged sphere. 🔬 Rutherford’s Model: Dense, positively charged nucleus with electrons orbiting around. 💫 Bohr’s Model: Electrons revolve in fixed orbits (energy levels). ☁️ Schrödinger’s Model: Electrons exist in clouds — zone