What are the different atomic models?

There have been several different atomic models proposed throughout history to explain the structure and behavior of atoms. The earliest model was proposed by Dalton in the early 19th century, known as the solid sphere model, which described atoms as indivisible, indestructible particles. This was then followed by the Thomson's plum pudding model, suggesting that atoms were made up of a positively charged sphere with negatively charged electrons embedded within it. However, the Rutherford model disproved the plum pudding model and proposed that atoms have a dense, positively charged nucleus surrounded by negatively charged electrons orbiting around it. Later, Niels Bohr introduced the planetary model, in which electrons occupy specific energy levels or shells, and only certain transitions between these levels are allowed. Ultimately, the quantum mechanical model emerged, which incorporates the principles of wave-particle duality and the probabilistic nature of electrons within atomic orbitals. These various models have played a significant role in developing our understanding of the complex and fascinating nature of atoms.

Atomic Models Different Atoms Structure History