Bohr Atom : Bohr Atom The Planetary Model of the Atom
Bohr’s Model : Bohr’s Model Nucleus Electron Orbit Energy Levels
Bohr Model of Atom : Bohr Model of Atom The Bohr model of the atom, like many ideas in
the history of science, was at first prompted by
and later partially disproved by experimentation. http://en.wikipedia.org/wiki/Category:Chemistry Increasing energy
of orbits n = 1 n = 2 n = 3 A photon is emitted
with energy E = hf e-
Modelo de Bohr del átomo : Modelo de Bohr del átomo El modelo de Bohr del átomo, al igual que en muchas de las ideas la historia de la ciencia, en la primera fue motivada por y más tarde parcialmente desmentida por la experimentación. http://en.wikipedia.org/wiki/Category:Chemistry El aumento de la energía De las órbitas n = 1 n = 2 n = 3 Un fotón es emitido Con la energía E = hf e-
Slide 5 : Cartoon courtesy of NearingZero.net
Development of the Atom : Development of the Atom
Development of the Atom : Development of the Atom
Planetary Model : Planetary Model +
An unsatisfactory model for the hydrogen atom : An unsatisfactory model for the hydrogen atom According to classical physics, light
should be emitted as the electron
circles the nucleus. A loss of energy
would cause the electron to be drawn
closer to the nucleus and eventually
spiral into it. Hill, Petrucci, General Chemistry An Integrated Approach 2nd Edition, page 294
Quantum Mechanical Model : Quantum Mechanical Model Modern atomic theory describes the electronic structure of the atom as the probability of finding electrons within certain regions of space (orbitals). Niels Bohr &
Albert Einstein
Development of Atomic Models : Development of Atomic Models
Modern View : Modern View The atom is mostly empty space
Two regions
Nucleus
protons and neutrons
Electron cloud
region where you might find an electron