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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
 

Formulas

C=VA (A is lambda)
E=hV
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
 

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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