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The Science of Fireworks at the Franklin Institute

 

 

 

 

B) Bohr Model of Atom

1:15 Bohr Model

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Early 1900's - Danish scientist Neils Bohr
discovers  the strange behavior of electrons.

This image is in the public domain because its copyright has expired.

 


Electrons in atoms
are restricted in the energies they
can possess,
give off and absorb.

 


Bohr Animation

[ HTML5 ]
St. Mary's H.S.

 

 

Hypothetical Element X

Excited Electron

 

Energy of 12 eV

Excited Electron

 

Energy of 4 eV

Ground State

 Energy of 1 eV

 

 

 

When electron falls back to ground state, what energies
 is it capable of giving off?

 

 


Answer

 

 

8 eV, 3 eV, 11 eV

 

 

(the difference between
each possible energy level)

 

 

1 eV = 1.6 x 10-19
p. 1 Reference

 

 

Each energy transition produces only one photon

 

 

 

Black Box

 

 

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