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Small review sheet to help study for this test
Constants
h= 6.63x10-34J*s
c=3x108 m/s |
h is Planck's Constant
c is speed of light
Purpose for flame test
To identify a metal by its color |
When is color emitted?
When the electron comes back to its groundstate |
Harmful and little effect radiations
Gamma Rays |
Long Radio waves |
X rays |
Microwaves |
UV or UltraViolet |
IR or Infrared |
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Formulas
E is energy
V is frequency
A is lambda
How an electron emits a photon
Heat or electricity is applied to an atom, and the electron absorbs the energy and then gets excited; leaves its ground state, and comes back to its nucleus due to it being attracted, and then releases energy; Photon |
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Conversions
1m=1x109nm
1kHz=1x103Hz
1mHz=1x106Hz |
mole of a photon
(6.02x1023)(6.63x10-34)(V)
Multiply this exactly how this is once you get your V and you will get your mole of a photon for the problem. |
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