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Do you remember what causes this beautiful phenomena?

The Aurora from Terje Sorgjerd on Vimeo.




Problems with the Bohr Model

Why can't the electrons
circle around the nucleus?

School blocks YouTube? Go to this site.

http://www.cassiopeiaproject.com

 

C) Limitations of Bohr Model

 

1) electron couldn’t circle around nucleus like a planet! …

 

 

Because they would lose energy (by emitting electromagnetic radiation) & spiral into nucleus.

 

 

2) Bohr was not able to explain electron orbits of large atom w/ many electrons

 

 

 

Uncertainty Principle

 

Wave Function And Wave-Particle Duality

 

 

Deutsches Bundesarchiv (German Federal Archive), Bild183-R57262

Commons:Bundesarchiv

Werner Heisenberg

 

 

 

 

When you are studying sub-atomic particles, you change them.

 

 

(A particles position and momentum are affected by your measuring devices.)

 

School blocks YouTube? Click below. 

| UncertaintyPrinciple.mov |

 

 

 

 

 

You can be certain about the position or momentum of a subatomic particle but never both
at the same time.

 

 

 

 

The more you know
about the momentum of a subatomic particle,
the less you know about
its position and vice versa

 

 

 

 

Present Theory of the Atom
Cloud Model

 

 

Electrons do not have precisely described positions and momenta

 

 

The 'probable' position and momenta are described mathematically

 

 

 

 

Electrons occupy regions in space called 'clouds'.

Image:S-p-Orbitals.svg 

Sven Benutzer:Benji

 

 

 

Spectral Lines - Electron Cloud Model

| Onsite Version |

Cassiopeia Project

 

 

 

Conservation of M & E

 

 

Enrichment

 

Quantum Mechanics: The Uncertainty Principle

http://www.cassiopeiaproject.com

 

Spectroscope

Science of the Silicon Solar Cell"
- Don Ion

 

 

 

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