Chapter 11: Introduction to Modern Atomic Theory

Introduction to the Bohr Model of the hydrogen atom. It turns out that the Bohr model is not the current model we use to describe the behavior of an electron in a hydrogen atom.

The Bohr model consists of electron 'orbiting' the nucleus. (In the Quantum Mechanical model of the hydrogen atom we describe the electron as occuping an orbital...a 3-dimension region of space where the probability of finding the electron is high.)

The electron occupies an orbit in the Bohr model. How does the electron move from one orbit to another? To move to a higher orbit the electron must absorb some energy. To move to a lower orbit energy must be given off.

The orbits are also called energy levels.

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