Post on 17-Jun-2015
Top of the wave to the origin lineCarries the energy – does not impact either frequency or wavelength
Chapter 6.1 - 6.4 Review
Distance between 2 successive peaks of 2 waves Represented by the Greek letter (lambda)
Chapter 6.1 - 6.4 Review
Number of complete waves passing a fixed point in a given time Represented by the Greek letter (nu)
Chapter 6.1 - 6.4 Review
Radiant energy emitted across a wide variety of wavelengths
Chapter 6.1 - 6.4 Review
3 x 108 m/s
Chapter 6.1 - 6.4 Review
c = x
So c = wavelength times frequency
Chapter 6.1 - 6.4 Review
Inverse relationship – As one variable increases, the other variable decreases
Chapter 6.1 - 6.4 Review
Red at 750 nm
Chapter 6.1 - 6.4 Review
Violet at 400 nm
Chapter 6.1 - 6.4 Review
Gamma Rays
Chapter 6.1 - 6.4 Review
Radio waves (specifically, AM radio)
Chapter 6.1 - 6.4 Review
Gamma Rays – X Rays – Ultraviolet (UV) – Visible Light – Infrared (IR) –Microwaves – Radio Waves
Chapter 6.1 - 6.4 Review
Gamma Rays – X Rays – Ultraviolet (UV) – Visible Light – Infrared (IR) –Microwaves – Radio Waves
Chapter 6.1 - 6.4 Review
ROYGBIVRed – Orange – Yellow – Green – Blue – Indigo - Violet
Chapter 6.1 - 6.4 Review
“Chunk” or fixed minimum amount of energy absorbed or emitted
Chapter 6.1 - 6.4 Review
Chapter 6.1 - 6.4 Review
hchE
Chapter 6.1 - 6.4 Review – Period 7
h = 6.6262 x 10-34 J∙s
Light consist of quanta called photons that carries energy equal to h
Chapter 6.1 - 6.4 Review
Sunlight striking a sheet of metal will knock off and move electrons, thereby causing an electric current
Chapter 6.1 - 6.4 Review
Both electrons and photons sometimes act as if they are particles (mass) and sometimes act like they are waves (energy) – Dual wave/particle nature
Chapter 6.1 - 6.4 Review
Radiation composed of only one wavelength
Chapter 6.1 - 6.4 Review
A spectrum
Chapter 6.1 - 6.4 Review
A spectrum of only certain wavelengths – not all of them
Chapter 6.1 - 6.4 Review
Specific energy levels that electrons existed in
Chapter 6.1 - 6.4 Review
When electrons are excited (added energy), jump into higher energy levels. When they moved back into lower energy levels - gave off light.
Chapter 6.1 - 6.4 Review
No. They absorb and emit only a quantum (fixed amount) of energy.
Chapter 6.1 - 6.4 Review
Chapter 6.1 - 6.4 Review
hEEE if
Chapter 6.1 - 6.4 Review
2218 11
J 1018.2
if nn
hchE
Absorbed
Chapter 6.1 - 6.4 Review
Emitted
Chapter 6.1 - 6.4 Review
Principal quantum number
Denotes energy level
Chapter 6.1 - 6.4 Review
Ground State
Chapter 6.1 - 6.4 Review
Excited State
Chapter 6.1 - 6.4 Review
Chapter 6.1 - 6.4 Review
mv
hWhere v = velocity
It is impossible to know the position, direction, and speed of an electron at any one point in time – can know two variables, but not the third
Chapter 6.1 - 6.4 Review