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Exam 1
Equations
23
Chemistry
Undergraduate 1
09/14/2009

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Term
Speed of Light
Definition
c= 3.00*108m/s
Term
C=lambda*frequency
Definition
wavelength*frequency=speed
Term
Gamma Rays
Definition
400mm and violet
Term
Radio Waves
Definition
700mm and red
Term
Nanometers
Definition
10-9
Term
Blackbody Radiation
Definition
when a solid is heated it emits electromagnetic radiation
Term
E=hv
Definition
amount of energy emitted. planks constant and the frequency.
Term
Ephoton=hv
Definition
Einstein's theory photoelectric effect
Term
Rydberg equation
Definition

1/lambda=Rinifinity(1/nf2-1/ni2)

Rinifinity=1.097*107m-1

Term
Ground State
Definition
lowest energyt state of an atom
Term
ΔE=Ef-Ei
Definition

Ef=-2.18*10-18J(1/nf2)

same for Ei

Term
λ=h/mu
Definition
wavelength =6.63*10-34 divide by (mass*velocity)
Term
Principal Quantum Number
Definition
Designates the size of the particular orbital. The larger the "n" is the greater the average distance of an electron in the orbital from the nucleus.
Term
Angular Momentum Quantum Number
Definition

describes the shape of the atomic orbital. L=n-1

Ex. N=2

L=1,0

Term
Magnetic Quantum Number
Definition

describes the orientation of the orbital in space. Within a subshell the value of ml depends on the value of L.

ml=(2l+1)

Ex. L=2

 ml=-1,0,1

Term
Pauli Exclusion Principle
Definition
No two electrons in an atom can have the same four quantum numbers!
Term
The Aufbau Principle
Definition
fill lowest shells first.
Term
Hund's Rule
Definition
fill across with same charge.
Term
Quantum L
Definition

L=0=s

L=1=p

L=2=d

L=3=f

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