CHEM101: General Chemistry I

The first model of the atom to use quantum mechanics was the Bohr Model of the hydrogen atom. You have no doubt seen this model, as it is frequently used in logos. The Bohr model, often called the planetary model, consists of the nucleus surrounded by electrons in fixed orbits circling the nucleus, much like planets orbit the sun. This model properly accounted for the hydrogen atomic spectrum and introduced the idea of quantum numbers – numbers that define the energy of an electron. However, as we learn in our next resource, this model is incorrect.